| Delaware (State
      or other jurisdiction of
      incorporation or organization) | 41-0518430 (I.R.S.
      Employer Identification No.) | 
| 1776
      Lincoln Street, Suite 700, Denver, Colorado (Address
      of principal executive offices) | 80203 (Zip
      Code) | 
| Title
      of each class | Name
      of each exchange on which registered | |
| Common
      Stock, $.01 par value | New
      York Stock Exchange | 
| Large
      accelerated filer þ | Accelerated
      filer o | 
| Non-accelerated
      filer o (Do
      not check if a smaller reporting company) | Smaller
      reporting company o | 
| TABLE OF
      CONTENTS | ||||
| ITEM | PAGE | |||
| PART
      I | ||||
| ITEMS
      1 and 2. | BUSINESS
      and PROPERTIES | 1 | ||
| General | 1 | |||
| Strategy | 1 | |||
| Significant Developments in
      2007 | 2 | |||
| Assets | 4 | |||
| Reserves | 9 | |||
| Production | 10 | |||
| Productive
    Wells | 11 | |||
| Drilling
    Activity | 11 | |||
| Acreage | 12 | |||
| Major
Customers | 12 | |||
| Employees and Office
      Space | 12 | |||
| Title to
      Properties | 13 | |||
| Seasonality | 13 | |||
| Competition | 13 | |||
| Government
      Regulations | 13 | |||
| Cautionary Information about
      Forward-Looking Statements | 15 | |||
| Available
      Information | 17 | |||
| Glossary of Oil and Natural
      Gas Terms | 17 | |||
| ITEM
      1A. | RISK
      FACTORS | 20 | ||
| ITEM
      1B. | UNRESOLVED
      STAFF COMMENTS | 29 | ||
| ITEM
      3. | LEGAL
      PROCEEDINGS | 29 | ||
| ITEM
      4. | SUBMISSION
      OF MATTERS TO A VOTE OF SECURITY  HOLDERS | 29 | ||
| ITEM
      4A. | EXECUTIVE
      OFFICERS OF THE REGISTRANT | 30 | ||
| PART
      II | ||||
| ITEM
      5. | MARKET
      FOR REGISTRANT’S COMMON EQUITY, RELATED
      STOCKHOLDER MATTERS AND ISSUER PURCHASES
      OF EQUITY SECURITIES. | 32 | ||
| ITEM
      6. | SELECTED
      FINANCIAL DATA | 36 | ||
| ITEM
      7. | MANAGEMENT’S
      DISCUSSION AND ANALYSIS OF FINANCIAL
      CONDITION AND RESULTS OF OPERATIONS | 38 | ||
| Overview of the
      Company | 38 | |||
| Overview of Liquidity and
      Capital Resources | 48 | |||
| Critical Accounting Policies
      and Estimates | 59 | |||
| Additional Comparative Data in
      Tabular Format | 62 | |||
| Comparison of Financial
      Results and Trends between 2007
      and 2006 | 64 | |||
| Comparison of Financial
      Results and Trends between 2006
      and 2005 | 66 | |||
| Other Liquidity and Capital
      Resource Information | 68 | |||
| Accounting
    Matters | 69 | |||
| Environmental | 70 | |||
| TABLE OF
      CONTENTS | ||||
| (Continued) | ||||
| ITEM | PAGE | |||
| ITEM
      7A. | QUANTITATIVE
      AND QUALITATIVE DISCLOSURES ABOUT  MARKET
      RISK (included with the content of ITEM 7) | 70 | ||
| ITEM
      8. | FINANCIAL
      STATEMENTS AND SUPPLEMENTARY DATA | 70 | ||
| ITEM
      9. | CHANGES
      IN AND DISAGREEMENTS WITH ACCOUNTANTS ON
      ACCOUNTING AND FINANCIAL DISCLOSURE | 70 | ||
| ITEM
      9A. | CONTROLS
      AND PROCEDURES | 70 | ||
| ITEM
      9B. | OTHER
      INFORMATION | 73 | ||
| PART
      III | ||||
| ITEM
      10. | DIRECTORS,
      EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE | 73 | ||
| ITEM
      11. | EXECUTIVE
      COMPENSATION | 73 | ||
| ITEM
      12. | SECURITY
      OWNERSHIP OF CERTAIN BENEFICIAL OWNERS
      AND MANAGEMENT AND RELATED STOCKHOLDER
      MATTERS | 73 | ||
| ITEM
      13. | CERTAIN
      RELATIONSHIPS AND RELATED TRANSACTIONS, AND
      DIRECTOR INDEPENDENCE | 73 | ||
| ITEM
      14. | PRINCIPAL
      ACCOUNTING FEES AND SERVICES | 74 | ||
| PART
      IV | ||||
| ITEM
      15. | EXHIBITS
      AND FINANCIAL STATEMENT SCHEDULES | 74 | ||
| ·   | Increase in 2007 Year-End
      Reserves.  Proved reserves increased 17 percent to
      1,086.5 BCFE at December 31, 2007, from 927.6 BCFE at December 31,
      2006.  We added 132.1 BCFE from our drilling program and 94.8
      BCFE from acquisitions.  We had a positive revision of 40.9 BCFE
      which consisted of a 6.4 BCFE upward performance revision and an upward
      revision of 34.5 BCFE due primarily to increased oil prices at the end of
      2007.  The 2007 acquisition volumes are lower than the initial
      estimates previously disclosed as a result of the final year-end reservoir
      engineering estimation.  We sold properties with reserves of 1.4
      BCFE in 2007. | 
| ·   | Drilling
      Results.  Reserve additions from drilling activities of
      132.1 BCFE were driven by results in the Mid-Continent, Rocky Mountain,
      ArkLaTex, and Permian regions, with those regions contributing 37 percent,
      21 percent, 20 percent, and 18 percent,
      respectively.  Additions in the Mid-Continent were driven
      principally by successful drilling by us and others in the horizontal
      Woodford shale formation in the Arkoma Basin, as well as positive results
      in two programs in the Anadarko Basin.  In the Rocky Mountain
      region, the largest contribution came from the Hanging Woman Basin where
      we added 9.9 BCFE of proved reserves.  The ArkLaTex region added
      26.2 BCFE from successful drilling operations in the James Lime carbonate
      program and Elm Grove Field.  Successful results in the
      Wolfberry program in 2007 were the principal driver of drilling additions
      in the Permian Basin. | 
| ·   | New Basin Entry in
      2007.  In 2007 we spent $182.9 million for acquisitions
      of proved and unproved oil and gas properties.  We entered the
      greater Maverick Basin with two acquisitions in South Texas totaling
      $178.9 million that target the Olmos shallow gas formation.  The
      first was the $30.0 million Catarina acquisition that closed in June
      2007.  The more significant transaction was the $148.9 million
      Rockford acquisition that closed in October 2007.  These
      properties added a sizeable inventory of lower risk drilling locations to
      our portfolio.  Consistent with prior acquisitions, we hedged
      several years of the risked production related to these acquisitions at
      the time of acquisition.  The remaining acquisitions in 2007
      were small niche transactions throughout the year in the Mid-Continent,
      ArkLaTex, and Rocky Mountain
regions. | 
| ·   | Senior and Regional Management
      Changes.  During 2007, the Company underwent or announced
      personnel changes in the chief executive position and in several regional
      manager positions.  On February 23, 2007, Mark Hellerstein
      retired as Chief Executive Officer after serving in that role since
      1995.  Tony Best, President of the Company, was appointed as
      Chief Executive Officer on that date.  Mr. Hellerstein
      continues to serve as the Chairman of the Board.  In June of
      2007, Jerry Schuyler, the Senior Vice President responsible for the Gulf
      Coast and Permian regions, left St. Mary to pursue another professional
      opportunity.  Greg Leyendecker, then Operations Manager for the
      Gulf Coast region, assumed responsibility for the Gulf Coast and is now
      Vice President - Regional Manager of the Gulf Coast region.  We
      also made the Midland office a stand-alone regional office headed by
      Lehman Newton III, Vice President - Regional Manager of our Permian
      region.  Mr. Leyendecker and Mr. Newton joined St. Mary in
      2006 and each have over 25 years of management and operational experience
      in the oil and gas industry.  In July 2007, Stephen Pugh joined
      the Company as Senior Vice President and Regional Manager of the ArkLaTex
      region.  Mr. Pugh succeeded David Hart, who retired from St.
      Mary after 15 years in various roles at the Company.  Mr. Pugh
      came to St. Mary with over 25 | 
|  | years
      of engineering, operations, and business development experience in the oil
      and gas industry.  In August of this year, Robert Nance, Senior
      Vice President - Regional Manager of the Rocky Mountain region, announced
      his decision to retire in the first quarter of 2008 after more than 40
      years in the oil and gas industry.  Mark Mueller joined us as
      Senior Vice President in August and now leads our Rocky Mountain
      region.  Mr. Mueller has over 20 years of management and
      technical experience in the oil and gas industry.  Effective
      January 1, 2008 Mark Mueller was appointed Senior Vice President -
      Regional Manager.  Subsequent to year end, David Honeyfield,
      Senior Vice President - Chief Financial Officer, announced that he will
      resign as an officer of St. Mary on March 21, 2008, in order to pursue an
      opportunity in an unrelated industry.  An external search for
      his successor is underway at the time of this
  filing. | 
| ·   | 2007 Capital Markets
      Activity.  In March of 2007 we called for redemption of
      the then outstanding $100.0 million 5.75% Senior Convertible Notes. 
      The notes had a conversion price of $13.00 per share.  One hundred
      percent of the holders of the notes elected to convert their notes into
      shares of common stock.  As a result of the conversion, 7.7 million
      shares of stock were issued to the note holders.  This resulted in a
      decrease to long-term debt of $100.0 million, and an increase to common
      stock associated with the conversion together with the recognition of the
      excess tax benefit associated with the contingent interest feature
      associated with the notes. | 
| ·   | Significant Volatility in
      Commodity Prices.  During 2007, the exploration and
      production sector was impacted by volatility in the prices for crude oil
      and natural gas.  Our operations and financial conditions were
      significantly impacted by these prices.  Our crude oil is sold
      on contracts that pay us the average of posted prices for the period in
      which the crude oil is sold.  NYMEX crude oil began 2007 with an
      average January price of $54.67 per barrel and increased steadily
      throughout the year, reaching an average monthly high for the year of
      $94.63 per barrel in November.  The average NYMEX price for the
      year was $72.34 per barrel.  Geopolitical unrest in various
      producing regions overseas and concerns domestically related to refinery
      utilization and petroleum product inventories were the principal drivers
      of the increase in oil prices in
2007. | 
| ·   | Repurchase of Common
      Stock. In 2007, we repurchased a total of 792,216 shares of our
      common stock in the open market for a weighted-average price of $32.76 per
      share, including commissions, under this program.  At the time
      we repurchased our shares, we entered into hedges for a commensurate
      amount of our production that was represented by the share repurchase in
      order to lock in the discounted price at which our shares were
      trading.  As of the date of this filing, we
  are | 
|  | authorized
      by the Board to repurchase 5,207,784 additional shares under this
      program.  The shares may be repurchased from time to time in
      open market transactions or in privately negotiated transactions, subject
      to market conditions and other factors, including certain provisions of
      our existing credit facility agreement and compliance with securities
      laws.  Stock repurchases may be funded with existing cash
      balances, internal cash flow, and borrowings under the credit
      facility. | 
| ArkLaTex | Mid- Continent | Gulf
      Coast | Permian | Rocky Mountain | Total | |||||||||||||
| 2007
      Proved Reserves: | ||||||||||||||||||
| Oil
      (MMBbl) | 1.0 | 1.5 | 0.9 | 20.0 | 55.4 | 78.8 | ||||||||||||
| Gas
      (Bcf) | 163.9 |  | 192.4 | 111.3 |  | 34.7 | 111.2 | 613.5 | ||||||||||
| Equivalents
      (BCFE) | 170.1 | 201.3 | 116.8 | 154.7 | 443.6 |  | 1,086.5 | |||||||||||
| Relative
      percentage | 15% | 19% | 11% | 14% | 41% | 100% | ||||||||||||
| Proved
      Developed % | 52% | 88% | 48% | 69% | 92% | 77% | ||||||||||||
|  | ||||||||||||||||||
| PV-10
      Value (in millions) | $ | 380.3 | $ | 585.5 | $ | 361.6 | $ | 824.2 | $ | 1,709.6 | $ | 3,861.2 | ||||||
| Relative
      percentage | 10% | 15% | 9% | 21% | 45% | 100% | ||||||||||||
| 2007
      Production: | ||||||||||||||||||
| Oil
      (MMBbl) | 0.1 | 0.5 | 0.2 | 1.4 | 4.7 | 6.9 | ||||||||||||
| Gas
      (Bcf) | 13.0 | 30.9 | 9.0 | 2.4 | 10.8 | 66.1 | ||||||||||||
| Equivalent
      (BCFE) | 13.8 | 34.0 | 10.3 | 10.7 | 38.7 | 107.5 | ||||||||||||
| Avg.
      Daily Equivalents (MMCFE/d) | 37.8 | 93.2 | 28.2 | 29.3 | 106.0 | 294.5 | ||||||||||||
| Relative
      percentage | 13% | 31% | 10% | 10% | 36% | 100% | ||||||||||||
| As
      of December 31, | |||||||||||
| Proved
      Reserves Data: | 2007 | 2006 | 2005 | ||||||||
| Oil
      (MMBbl) | 78.8 | 74.2 | 62.9 | ||||||||
| Gas
      (Bcf) | 613.5 | 482.5 | 417.1 | ||||||||
| BCFE | 1,086.5 | 927.6 | 794.5 | ||||||||
| Standardized
      measure of discounted future
      net cash flows (in thousands) | $ | 2,706,914 | $ | 1,576,437 | $ | 1,712,298 | |||||
| PV-10
      value (in thousands) | $ | 3,861,187 | $ | 2,157,449 | $ | 2,494,169 | |||||
| Proved
      developed reserves | 77% | 78% | 82% | ||||||||
| Reserve
      replacement – including sales of reserves | 248% | 244% | 256% | ||||||||
| Reserve
      replacement – excluding sales of reserves | 249% | 247% | 256% | ||||||||
| Reserve
      life (years) (1) | 10.1 | 10.0 | 9.1 | ||||||||
| As
      of December 31, | |||||||||||
| 2007 | 2006 | 2005 | |||||||||
|  
      (In
      thousands) | |||||||||||
| Standardized
      measure of discounted future
      net cash flows | $ | 2,706,914 | $ | 1,576,437 | $ | 1,712,298 | |||||
| Add:
      10 percent annual discount, net of income taxes | 2,321,983 | 1,238,308 | 1,286,568 | ||||||||
| Add:
      Future income taxes | 2,316,637 | 1,125,955 | 1,448,444 | ||||||||
| Undiscounted
      future net cash flows | $ | 7,345,534 | $ | 3,940,700 | $ | 4,447,310 | |||||
| Less:
      10 percent annual discount without tax effect | (3,484,347 | ) | (1,783,251 | ) | (1,953,141 | ) | |||||
| PV-10
      value | $ | 3,861,187 | $ | 2,157,449 | $ | 2,494,169 | |||||
| Years
      Ended December 31, | |||||||||
| 2007 | 2006 | 2005 | |||||||
| Net
      production: | |||||||||
| Oil
      (MMBbl) | 6.9 | 6.1 | 5.9 | ||||||
| Gas
      (Bcf) | 66.1 | 56.4 | 51.8 | ||||||
| BCFE | 107.5 | 92.8 | 87.4 | ||||||
| Average
      net daily production: | |||||||||
| Oil
      (MBbl) | 18.9 | 16.6 | 16.2 | ||||||
| Gas
      (MMcf) | 181.0 | 154.7 | 141.9 | ||||||
| MMCFE | 294.5 | 254.2 | 239.4 | ||||||
| Average
      realized sales price, excluding the effects of hedging: | |||||||||
| Oil
      (per Bbl) | $ | 67.56 | $ | 59.33 | $ | 53.18 | |||
| Gas
      (per Mcf) | $ | 6.74 | $ | 6.58 | $ | 8.08 | |||
| Per
      MCFE | $ | 8.48 | $ | 7.88 | $ | 8.40 | |||
| Average
      realized sales price, including the effects of hedging: | |||||||||
| Oil
      (per Bbl) | $ | 62.60 | $ | 56.60 | $ | 50.93 | |||
| Gas
      (per Mcf) | $ | 7.63 | $ | 7.37 | $ | 7.90 | |||
| Per
      MCFE | $ | 8.71 | $ | 8.18 | $ | 8.14 | |||
| Production
      costs per MCFE: | |||||||||
| Lease
      operating expense | $ | 1.31 | $ | 1.25 | $ | 0.99 | |||
| Transportation
      expense | $ | 0.14 | $ | 0.12 | $ | 0.09 | |||
| Production
      taxes | $ | 0.58 | $ | 0.54 | $ | 0.56 | |||
| Years
      Ended December 31, | ||||||||||||||||||
| 2007 | 2006 | 2005 | ||||||||||||||||
| Gross | Net | Gross | Net | Gross | Net | |||||||||||||
| Development: | ||||||||||||||||||
| Oil | 164 | 77.91 | 81 | 35.32 | 83 | 38.09 | ||||||||||||
| Gas | 518 | 204.62 | 446 | 178.97 | 379 | 152.69 | ||||||||||||
| Non-productive | 30 | 13.18 | 31 | 10.65 | 29 | 9.12 | ||||||||||||
| 712 | 295.71 | 558 | 224.94 | 491 | 199.90 | |||||||||||||
| Exploratory: | ||||||||||||||||||
| Oil | 3 | 1.92 | 10 | 5.53 | 8 | 1.91 | ||||||||||||
| Gas | 9 | 4.01 | 15 | 3.68 | 5 | 0.86 | ||||||||||||
| Non-productive | 5 | 2.58 | 8 | 1.81 | 5 | 2.32 | ||||||||||||
| 17 | 8.51 | 33 | 11.02 | 18 | 5.09 | |||||||||||||
| Farmout
      or non-consent | 1 | - | 2 | - | 18 | - | ||||||||||||
| Total
      (1) | 730 | 304.22 | 593 | 235.96 | 527 | 204.99 | ||||||||||||
| Developed
      Acres (1) | Undeveloped
      Acres (2) | Total | ||||||||||||||||
| Gross | Net | Gross | Net | Gross | Net | |||||||||||||
| Arkansas | 2,917 | 408 | 207 | 68 | 3,124 | 476 | ||||||||||||
| Colorado | 3,098 | 2,496 | 20,269 | 12,530 | 23,367 | 15,026 | ||||||||||||
| Louisiana | 136,606 | 45,913 | 52,349 | 15,081 | 188,955 | 60,994 | ||||||||||||
| Mississippi | 6,646 | 727 | 59,907 | 21,435 | 66,553 | 22,162 | ||||||||||||
| Montana | 70,462 | 45,523 | 426,161 | 286,841 | 496,623 | 332,364 | ||||||||||||
| New
      Mexico | 5,440 | 2,608 | 1,480 | 1,187 | 6,920 | 3,795 | ||||||||||||
| North
      Dakota | 150,968 | 97,691 | 198,104 | 110,786 | 349,072 | 208,477 | ||||||||||||
| Oklahoma | 302,820 | 91,523 | 107,018 | 56,735 | 409,838 | 148,258 | ||||||||||||
| Texas | 215,056 | 78,310 | 163,849 | 97,019 | 378,905 | 175,329 | ||||||||||||
| Utah
      (3) | 480 | 115 | 3,574 | 831 | 4,054 | 946 | ||||||||||||
| Wyoming | 152,209 | 97,129 | 395,083 | 226,410 | 547,292 | 323,539 | ||||||||||||
| Other
      (4) | 2,201 | 873 | 3,836 | 1,090 | 6,037 | 1,963 | ||||||||||||
| 1,048,903 | 463,316 | 1,431,837 | 830,013 | 2,480,740 | 1,293,329 | |||||||||||||
| Louisiana
      Fee Properties | 10,818 | 10,818 | 14,096 | 14,096 | 24,914 | 24,914 | ||||||||||||
| Louisiana
      Mineral Servitudes | 10,173 | 5,740 | 4,411 | 4,048 | 14,584 | 9,788 | ||||||||||||
| 20,991 | 16,558 | 18,507 | 18,144 | 39,498 | 34,702 | |||||||||||||
| Total
      (5) | 1,069,894 | 479,874 | 1,450,344 | 848,157 | 2,520,238 | 1,328,031 | ||||||||||||
|  | · | Engineering
      and construction specifications for offshore production
      facilities | 
|  | · | Safety
      procedures | 
|  | · | Flaring
      of production | 
|  | · | Plugging
      and abandonment of Outer Continental Shelf (OCS)
  wells | 
|  | · | Calculation
      of royalty payments and the valuation of production for this
      purpose | 
|  | · | Removal
      of facilities. | 
| ·   | The
      amount and nature of future capital expenditures and the availability of
      capital resources to fund capital
expenditures | 
| ·   | The
      drilling of wells and other exploration and development activities, as
      well as possible future
acquisitions | 
| ·   | Reserve
      estimates and the estimates of both future net revenues and the present
      value of future net revenues that are implied by those reserve
      estimates | 
| ·   | Future
      oil and natural gas production
estimates | 
| ·   | Our
      outlook on future oil and natural gas
prices | 
| ·   | Cash
      flows, anticipated liquidity, and the future repayment of
    debt | 
| ·   | Business
      strategies and other plans and objectives for future operations, including
      plans for expansion and growth of operations and our outlook on future
      financial condition or results of
operations | 
| ·   | Other
      similar matters such as those discussed in the “Management’s Discussion
      and Analysis of Financial Condition and Results of Operations” in Item 7
      of this Form 10-K. | 
| ·   | The
      volatility and level of realized oil and natural gas
  prices | 
| ·   | Our
      ability to replace reserves and sustain
  production | 
| ·   | Unexpected
      drilling conditions and results | 
| ·   | Unsuccessful
      exploration and development
drilling | 
| ·   | The
      availability of economically attractive exploration, development, and
      property acquisition opportunities and any necessary
    financing | 
| ·   | The
      risks of hedging strategies | 
| ·   | Lower
      prices realized on oil and natural gas sales resulting from our commodity
      price risk management activities | 
| ·   | The
      uncertain nature of the expected benefits from acquisitions and
      divestitures of oil and natural gas properties, including uncertainties in
      evaluating oil and natural gas reserves of acquired properties and
      associated potential liabilities | 
| ·   | The
      imprecise nature of oil and natural gas reserve
  estimates | 
| ·   | Uncertainties
      inherent in projecting future rates of production from drilling activities
      and acquisitions | 
| ·   | Drilling
      and operating service availability | 
| ·   | Uncertainties
      in cash flow | 
| ·   | The
      financial strength of hedge contract
  counterparties | 
| ·   | The
      negative impact that lower oil and natural gas prices could have on our
      ability to borrow | 
| ·   | The
      potential effects of increased levels of debt
  financing | 
| ·   | Our
      ability to compete effectively against other independent and major oil and
      natural gas companies | 
| ·   | Litigation,
      environmental matters, the potential impact of government regulations, and
      the use of management estimates. | 
| ·   | Worldwide
      and domestic supplies of oil and natural
gas | 
| ·   | The
      ability of the members of the Organization of Petroleum Exporting
      Countries to agree to and maintain oil price and production
      controls | 
| ·   | Pipeline,
      transportation, or refining capacity constraints in a regional or
      localized area may impact the realized price for oil or natural
      gas | 
| ·   | Political
      instability or armed conflict in oil or natural gas producing
      regions | 
| ·   | The
      price and level of foreign imports of crude oil, refined petroleum
      products, and liquefied natural gas | 
| ·   | Worldwide
      and domestic economic conditions | 
| ·   | The
      level of consumer demand for
hydrocarbons | 
| ·   | Productive
      capacity of the industry as a whole | 
| ·   | The
      availability of transportation
facilities | 
| ·   | Weather
      conditions | 
| ·   | The
      price and availability of alternative
fuels | 
| ·   | Governmental
      regulations and taxes. | 
| ·   | Amount
      and timing of actual production | 
| ·   | Supply
      and demand for oil and natural gas | 
| ·   | Curtailments
      or increases in consumption by oil purchasers and natural gas
      pipelines | 
| ·   | Changes
      in governmental regulations or
taxes. | 
| ·   | Unexpected
      drilling conditions | 
| ·   | Title
      problems | 
| ·   | Pressure
      or geologic irregularities in
formations | 
| ·   | Equipment
      failures or accidents | 
| ·   | Hurricanes
      and other adverse weather
conditions | 
| ·   | Compliance
      with environmental and other governmental
  requirements | 
| ·   | Shortages
      or delays in the availability of or increases in the cost of drilling rigs
      and crews, fracture stimulation crews and equipment, chemicals, and
      supplies. | 
| ·   | Our
      production is less than expected | 
| ·   | There
      is a widening of price differentials between delivery points for our
      production and the delivery point assumed in the hedge
      arrangement | 
| ·   | The
      counterparties to our hedge contracts fail to perform under the
      contracts. | 
|     ·   | Making
      it more difficult for us to obtain additional financing in the future for
      our operations and potential acquisitions, working capital requirements,
      capital expenditures, debt service, or other general corporate
      requirements | 
|     ·   | Requiring
      us to dedicate a substantial portion of our cash flows from operations to
      the repayment of our debt and the service of interest associated with our
      debt rather than to productive
investments. | 
|     ·   | Limiting
      our operating flexibility due to financial and other restrictive
      covenants, including restrictions on incurring additional debt, creating
      liens on our properties, making acquisitions, and paying
      dividends | 
|     ·   | Placing
      us at a competitive disadvantage compared to our competitors that have
      less debt | 
|     ·   | Making
      us more vulnerable in the event of adverse economic or industry conditions
      or a downturn in our business. | 
|     ·   | Changes
      in oil or natural gas prices | 
|     ·   | Variations
      in quarterly drilling, recompletions, acquisitions, and operating
      results | 
|     ·   | Changes
      in financial estimates by securities
analysts | 
|     ·   | Changes
      in market valuations of comparable
companies | 
|     ·   | Additions
      or departures of key personnel | 
|     ·   | Future
      sales of our common stock | 
|     ·   | Changes
      in the national and global economic
outlook. | 
| Name | Age | Position | 
| Anthony
      J. Best | 58 | Chief
      Executive Officer and President | 
| Javan
      D. Ottoson | 49 | Executive
      Vice President and Chief Operating Officer | 
| David
      W. Honeyfield* | 41 | Senior
      Vice President - Chief Financial Officer and Secretary | 
| Mark
      D. Mueller | 43 | Senior
      Vice President and Regional Manager | 
| Stephen
      C. Pugh | 49 | Senior
      Vice President and Regional Manager | 
| Paul
      M. Veatch | 41 | Senior
      Vice President and Regional Manager | 
| Jerold
      M. Hertzler | 50 | Vice
      President - Business Development | 
| Gregory
      T. Leyendecker | 50 | Vice
      President - Regional Manager | 
| Lehman
      E. Newton, III | 52 | Vice
      President - Regional Manager | 
| Milam
      Randolph Pharo | 55 | Vice
      President - Land and Legal and Assistant Secretary | 
| Garry
      A. Wilkening | 57 | Vice
      President - Human Resources and Administration | 
| Mark
      T. Solomon | 39 | Controller | 
| ITEM
      5. | MARKET
      FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER
      PURCHASES OF EQUITY SECURITIES | 
| Quarter
      Ended | High | Low | ||||||
| December
      31, 2007 | $ | 44.50 | $ | 35.40 | ||||
| September
      30, 2007 | 37.15 | 31.20 | ||||||
| June
      30, 2007 | 40.19 | 34.91 | ||||||
| March
      31, 2007 | 38.20 | 33.55 | ||||||
| December
      31, 2006 | $ | 40.85 | $ | 33.43 | ||||
| September
      30, 2006 | 43.92 | 34.77 | ||||||
| June
      30, 2006 | 45.59 | 34.38 | ||||||
| March
      31, 2006 | 44.69 | 34.70 | ||||||

| ( a
      ) | ( b
      ) | ( c
      ) | |||||||||
| Plan
      Category | Number
      of securities to be issued upon exercise of outstanding options, warrants,
      and rights | Weighted-average
      exercise price of outstanding options, warrants, and
rights | Number
      of securities remaining available for future issuance under equity
      compensation plans (excluding securities reflected in column
      (a)) | ||||||||
| 2006
      Equity Incentive Compensation Plan | |||||||||||
| Stock
      Options and Incentive Stock Options | 2,385,500 | $ | 12.62 | - | (1 | ) | |||||
| Restricted
      Stock Plan | 684,264 | N/A | 2,560,224 | (1 | ) | ||||||
| Employee
      Stock Purchase Plan | - | - | 1,599,811 | (2 | ) | ||||||
| Equity
      compensation plans not approved by security holders | - | - | - | ||||||||
| Total | 3,069,764 | $ | 12.62 | 4,160,035 | |||||||
| PURCHASES
      OF EQUITY SECURITIES BY ISSUER AND AFFILIATED PURCHASERS | ||||||||||||||||
| Total
      Number of Shares Purchased | Average
      Price Paid per Share | Total
      Number of Shares Purchased as Part of Publicly Announced
      Program | Maximum
      Number of Shares that May Yet be Purchased Under the Program(2) | |||||||||||||
| January
      1, 2007 – March 31, 2007 | - | $ | - | - | 6,000,000 | |||||||||||
| April
      1, 2007 - June 30, 2007 | - | $ | - | - | 6,000,000 | |||||||||||
| July
      1, 2007 - September 30,
    2007 | 791,816 | (1) | $ | 32.76 | 790,816 | 5,209,184 | ||||||||||
| October
      1, 2007 - October 31,
2007 | - | $ | - | - | 5,209,184 | |||||||||||
| November
      1, 2007 - November 30,
    2007 | - | $ | - | - | 5,209,184 | |||||||||||
| December
      1, 2007 - December 31,
    2007 | 1,400 | $ | 37.52 | 1,400 | 5,207,784 | |||||||||||
| Total
      October 1, 2007 - December 31,
    2007 | 1,400 | $ | 37.52 | 1,400 | 5,207,784 | |||||||||||
| Total | 793,216 | $ | 32.76 | 792,216 | 5,207,784 | |||||||||||
| Years
      Ended December 31, | |||||||||||||||
| 2007 | 2006 | 2005 | 2004 | 2003 | |||||||||||
| (In
      thousands, except per share data) | |||||||||||||||
| Total
      operating revenues | $ | 990,094 | $ | 787,701 | $ | 739,590 | $ | 433,099 | $ | 393,708 | |||||
| Income
      before cumulative effect of  change in accounting
      principle | $ | 189,712 | $ | 190,015 | $ | 151,936 | $ | 92,479 | $ | 90,140 | |||||
| Net
      income per share: | |||||||||||||||
| Basic | $ | 3.07 | $ | 3.38 | $ | 2.67 | $ | 1.60 | $ | 1.53 | |||||
| Diluted | $ | 2.94 | $ | 2.94 | $ | 2.33 | $ | 1.44 | $ | 1.40 | |||||
| Total
      assets at year end | $ | 2,571,680 | $ | 1,899,097 | $ | 1,268,747 | $ | 945,460 | $ | 735,854 | |||||
| Long-term
      obligations: | |||||||||||||||
| Line
      of credit | $ | 285,000 | $ | 334,000 | $ | - | $ | 37,000 | $ | 11,000 | |||||
| Senior
      convertible notes | $ | 287,500 | $ | 99,980 | $ | 99,885 | $ | 99,791 | $ | 99,696 | |||||
| Cash
      dividends declared and paid per common share | $ | 0.10 | $ | 0.10 | $ | 0.10 | $ | 0.05 | $ | 0.05 | |||||
| Supplemental
      Selected Financial and Operational Data: | |||||||||||||||
| Years
      Ended December 31, | |||||||||||||||
| 2007 | 2006 | 2005 | 2004 | 2003 | |||||||||||
| (In thousands, except per share
      data) | |||||||||||||||
| Balance
      Sheet Data: | |||||||||||||||
| Total
      working capital (deficit) | $ | (92,604 | ) | $ | 22,870 | $ | 4,937 | $ | 12,035 | $ | 3,101 | ||||
| Total
      stockholders’ equity | $ | 863,345 | $ | 743,374 | $ | 569,320 | $ | 484,455 | $ | 390,653 | |||||
| Weighted-average shares
      outstanding: | |||||||||||||||
| Basic | 61,852 | 56,291 | 56,907 | 57,702 | 62,467 | ||||||||||
| Diluted | 64,850 | 65,962 | 66,894 | 66,894 | 71,069 | ||||||||||
| Reserves: | |||||||||||||||
| Oil
      (MMBbl) | 78.8 | 74.2 | 62.9 | 56.6 | 47.8 | ||||||||||
| Gas
      (Mcf) | 613.5 | 482.5 | 417.1 | 319.2 | 307.0 | ||||||||||
| MCFE | 1,086.5 | 927.6 | 794.5 | 658.6 | 593.7 | ||||||||||
| Production
      and Operational: | |||||||||||||||
| Oil
      and gas production revenues, including hedging | $ | 936,577 | $ | 758,913 | $ | 711,005 | $ | 413,318 | $ | 365,114 | |||||
| Oil
      and gas production expenses | $ | 218,208 | $ | 176,590 | $ | 142,873 | $ | 95,518 | $ | 88,509 | |||||
| DD&A | $ | 227,596 | $ | 154,522 | $ | 132,758 | $ | 92,223 | $ | 81,960 | |||||
| General
      and administrative | $ | 60,149 | $ | 38,873 | $ | 32,756 | $ | 22,004 | $ | 21,197 | |||||
| Production
      Volumes: | |||||||||||||||
| Oil
      (MMBbl) | 6.9 | 6.1 | 5.9 | 4.8 | 4.5 | ||||||||||
| Gas
      (Bcf) | 66.1 | 56.4 | 51.8 | 46.6 | 49.7 | ||||||||||
| BCFE | 107.5 | 92.8 | 87.4 | 75.4 | 76.9 | ||||||||||
| Realized
      Price – pre hedging: | |||||||||||||||
| Per
      Bbl | $ | 67.56 | $ | 59.33 | $ | 53.18 | $ | 39.77 | $ | 29.40 | |||||
| Per
      Mcf | $ | 6.74 | $ | 6.58 | $ | 8.08 | $ | 5.85 | $ | 5.12 | |||||
| Realized
      Price – net of hedging: | |||||||||||||||
| Per
      Bbl | $ | 62.60 | $ | 56.60 | $ | 50.93 | $ | 32.53 | $ | 26.96 | |||||
| Per
      Mcf | $ | 7.63 | $ | 7.37 | $ | 7.90 | $ | 5.52 | $ | 4.89 | |||||
| Expense
      per MCFE: | |||||||||||||||
| LOE | $ | 1.31 | $ | 1.25 | $ | 0.99 | $ | 0.81 | $ | 0.77 | |||||
| Transportation | $ | 0.14 | $ | 0.12 | $ | 0.09 | $ | 0.10 | $ | 0.09 | |||||
| Production
      taxes | $ | 0.58 | $ | 0.54 | $ | 0.56 | $ | 0.36 | $ | 0.29 | |||||
| DD&A | $ | 2.12 | $ | 1.67 | $ | 1.52 | $ | 1.22 | $ | 1.07 | |||||
| General
      and administrative | $ | 0.56 | $ | 0.42 | $ | 0.37 | $ | 0.29 | $ | 0.28 | |||||
| Cash
      Flow: | |||||||||||||||
| From
      operations | $ | 630,792 | $ | 467,700 | $ | 409,379 | $ | 237,162 | $ | 204,319 | |||||
| Used
      in investing | $ | (803,872 | ) | $ | (724,719 | ) | $ | (339,779 | ) | $ | (247,006 | ) | $ | (196,939 | ) | 
| From
      (used in) financing | $ | 215,126 | $ | 243,558 | $ | (61,093 | ) | $ | 1,435 | $ | (3,707 | ) | |||
| ITEM
      7. | MANAGEMENT’S
      DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
      OPERATIONS | 
|     ·   | Average
      daily gas production of 181.0 MMcf per day, up 17 percent from
      2006.  Average daily oil production of 18.9 MBbl per day, up 14
      percent from 2006.  Average total equivalent daily production
      was 294.5 MMCFE which was an annual record for the
  Company. | 
|     ·   | Estimated
      proved reserves of 78.8 MMBbls of oil and 613.5 Bcf of natural gas, or
      1,086.5 BCFE, as of December 31, 2007.  This was an increase of
      17 percent from year-end 2006 proved reserves of 927.6
    BCFE. | 
|     ·   | Diluted
      earnings per share for 2007 were $2.94 on net income of $189.7
      million.  This reflects a slight decrease in net income
      when compared to 2006.  The earnings per share benefited from
      the 0.8 million shares acquired by the Company during
      2007. | 
|     ·   | Cash
      flow from operating activities of $630.8 million, an increase of 35
      percent from 2006. | 
|     ·   | Debt
      to capitalization ratio is 40 percent.  The 2007 amount does not
      consider proceeds from our divestiture of non-core assets that closed on
      January 31, 2008, described in Note 3 of Part IV, Item 15 of this report,
      which were used to pay down outstanding bank
  borrowings. | 
| For
      the Three Months Ended | ||||||||||||
| December
      31, | September
      30, | June
      30, | March
      31, | |||||||||
| 2007 | 2007 | 2007 | 2007 | |||||||||
| (In
      millions, except production sales data) | ||||||||||||
| Production
      (BCFE) | 28.5 | 27.5 | 26.0 | 25.5 | ||||||||
| Oil
      and gas production revenue, excluding
      the effects of hedging | $ | 273.7 | $ | 228.5 | $ | 216.2 | $ | 193.7 | ||||
| Lease
      operating expense | $ | 37.8 | $ | 36.9 | $ | 31.6 | $ | 34.1 | ||||
| Transportation
      costs | $ | 3.8 | $ | 3.2 | $ | 4.2 | $ | 4.4 | ||||
| Production
      taxes | $ | 19.1 | $ | 14.9 | $ | 14.5 | $ | 13.7 | ||||
| DD&A | $ | 64.8 | $ | 59.1 | $ | 54.7 | $ | 49.0 | ||||
| Exploration* | $ | 16.0 | $ | 12.6 | $ | 11.1 | $ | 19.0 | ||||
| General
      and administrative expense* | $ | 15.1 | $ | 15.8 | $ | 16.3 | $ | 12.9 | ||||
| Net
      income | $ | 32.8 | $ | 57.7 | $ | 59.2 | $ | 40.0 | ||||
| Percentage change from
      previous quarter: | ||||||||||||
| Production
      (BCFE) | 4% | 6% | 2% | 2% | ||||||||
| Oil
      and gas production revenues, excluding
      the effects of hedging | 20% | 6% | 12% | 7% | ||||||||
| Lease
      operating expense | 2% | 17% | (7)% | 9% | ||||||||
| Transportation
      costs | 19% | (24)% | (5)% | 47% | ||||||||
| Production
      taxes | 28% | 3% | 6% | 6% | ||||||||
| DD&A | 10% | 8% | 12% | 10% | ||||||||
| Exploration* | 27% | 14% | (42)% | 19% | ||||||||
| General
      and administrative expense* | (4)% | (3)% | 26% | 63% | ||||||||
| Net
      income | (43)% | (3)% | 48% | (8)% | ||||||||
|     ·   | We
      believe that we have the necessary capital, personnel, and service
      availability to execute this program.  The $626 million budgeted
      for drilling activities in 2008 is allocated among our core areas as
      described below.  Included in the discussion are highlights of
      the program in each region this
year. | 
| As
      of and for the Years Ended | Percent
      Change Between | |||||||||||||
| 2007 | 2006 | 2005 | 2007/2006 | 2006/2005 | ||||||||||
| Selected
      Operations Data (In Thousands, Except Price, Volume, and Per MCFE
      Amounts): | ||||||||||||||
| Total proved
      reserves | ||||||||||||||
| Oil
      (MMBbl) | 78.8 | 74.2 | 62.9 | |||||||||||
| Natural
      gas (Bcf) | 613.5 | 482.5 | 417.1 | |||||||||||
| BCFE | 1,086.5 | 927.6 | 794.5 | 17% | 17% | |||||||||
| Net production
      volumes | ||||||||||||||
| Oil
      (MMBbl) | 6.9 | 6.1 | 5.9 | |||||||||||
| Natural
      gas (Bcf) | 66.1 | 56.4 | 51.8 | |||||||||||
| BCFE | 107.5 | 92.8 | 87.4 | 16% | 6% | |||||||||
| Average daily
      production | ||||||||||||||
| Oil
      (MBbl) | 18.9 | 16.6 | 16.2 | |||||||||||
| Natural
      gas (MMcf) | 181.0 | 154.7 | 141.9 | |||||||||||
| MMCFE | 294.5 | 254.2 | 239.4 | 16% | 6% | |||||||||
| Oil &
      gas production revenues | ||||||||||||||
| Oil
      production, including hedging | $ | 432,375 | $ | 342,810 | $ | 301,860 | ||||||||
| Gas
      production, including hedging | 504,202 | 416,103 | 409,145 | |||||||||||
| Total | $ | 936,577 | $ | 758,913 | $ | 711,005 | 23% | 7% | ||||||
| Oil & gas
      production costs | ||||||||||||||
| Lease
      operating expenses | $ | 140,389 | $ | 115,896 | $ | 86,130 | ||||||||
| Transportation
      costs | 15,529 | 10,999 | 8,010 | |||||||||||
| Production
      taxes | 62,290 | 49,695 | 48,733 | |||||||||||
| Total | $ | 218,208 | $ | 176,590 | $ | 142,873 | 24% | 24% | ||||||
| Average net realized
      sales price (1) | ||||||||||||||
| Oil
      (per Bbl) | $ | 62.60 | $ | 56.60 | $ | 50.93 | 11% | 11% | ||||||
| Natural
      gas (per Mcf) | $ | 7.63 | $ | 7.37 | $ | 7.90 | 4% | (7)% | ||||||
| Per MCFE
      data | ||||||||||||||
| Average
      net realized price (1) | $ | 8.71 | $ | 8.18 | $ | 8.14 | 6% | -% | ||||||
| Lease
      operating expense | (1.31 | ) | (1.25 | ) | (0.99 | ) | 5% | 26% | ||||||
| Transportation
      costs | (0.14 | ) | (0.12 | ) | (0.09 | ) | 17% | 33% | ||||||
| Production
      taxes | (0.58 | ) | (0.54 | ) | (0.56 | ) | 7% | (4)% | ||||||
| General
      and administrative | (0.56 | ) | (0.42 | ) | (0.37 | ) | 33% | 14% | ||||||
| Operating
      profit | $ | 6.12 | $ | 5.85 | $ | 6.13 | 5% | (5)% | ||||||
| Depletion,
      depreciation and amortization | $ | 2.12 | $ | 1.67 | $ | 1.52 | 27% | 10% | ||||||
| Financial
      Information (In Thousands, Except Per Share Amounts): | ||||||||||||||
| Working
      capital (deficit) | $ | (92,604 | ) | $ | 22,870 | $ | 4,937 | (505)% | 363% | |||||
| Long-term
      debt | $ | 572,500 | $ | 433,980 | $ | 99,885 | 32% | 334% | ||||||
| Stockholders’
      equity | $ | 863,345 | $ | 743,374 | $ | 569,320 | 16% | 31% | ||||||
| Net
      income | $ | 189,712 | $ | 190,015 | $ | 151,936 | -% | 25% | ||||||
| Basic
      net income per common share | $ | 3.07 | $ | 3.38 | $ | 2.67 | (9)% | 27% | ||||||
| Diluted
      net income per common share | $ | 2.94 | $ | 2.94 | $ | 2.33 | -% | 26% | ||||||
| Basic
      weighted-average shares outstanding | 61,852 | 56,291 | 56,907 | 10% | (1)% | |||||||||
| Diluted
      weighted-average shares outstanding | 64,850 | 65,962 | 66,894 | (2)% | (1)% | |||||||||
| Net
      cash provided by operating activities | $ | 630,792 | $ | 467,700 | $ | 409,379 | 35% | 14% | ||||||
| Net
      cash used in investing activities | $ | (803,872 | ) | $ | (724,719 | ) | $ | (339,779 | ) | 11% | 113% | |||
| Net
      cash provided by (used in) financing Activities | $ | 215,126 | $ | 243,558 | $ | (61,093 | ) | (12)% | (499)% | |||||
| Amount
      of Change Between | Percent
      of Change Between | |||||||||
| 2007/2006 | 2006/2005 | 2007/2006 | 2006/2005 | |||||||
| Net
      Cash Provided By Operating Activities | $ | 163,092 | $ | 58,321 | 35% | 14% | ||||
| Net
      Cash Used In Investing Activities | $ | (79,153 | ) | $ | (384,940 | ) | 11% | 113% | ||
| Net
      Cash Provided By (Used In) Financing Activities | $ | (28,432 | ) | $ | 304,651 | (12)% | 499% | |||
| Years
      Ended December 31, | |||||||||
| 2007 | 2006 | 2005 | |||||||
| (In
      thousands) | |||||||||
| Development
      costs | $ | 591,013 | $ | 367,546 | $ | 249,518 | |||
| Exploration
      costs | 111,470 | 126,220 | 69,817 | ||||||
| Acquisitions: | |||||||||
| Proved | 161,665 | 238,400 | 84,981 | ||||||
| Unproved | 23,495 | 44,472 | 2,853 | ||||||
| Leasing
      activity | 38,436 | 28,816 | 14,330 | ||||||
| Total | $ | 926,079 | $ | 805,454 | $ | 421,499 | |||
| Pro
      forma effect on net cash flow from operations of a ten percent change in
      average realized sales price: | |||||||||
| For
      the Years Ended December 31, | |||||||||
| 2007 | 2006 | 2005 | |||||||
| (In
      thousands) | |||||||||
| Oil | $ | 25,248 | $ | 20,496 | $ | 18,098 | |||
| Natural
      Gas | 29,998 | 25,117 | 24,502 | ||||||
| Total | $ | 55,246 | $ | 45,613 | $ | 42,600 | |||
| Oil
      Swaps | |||||||||
| Contract
      Period | Volumes | Weighted- Average Contract Price | Fair
      Value at December
      31, 2007 Asset/(Liability) | ||||||
| (Bbl) | (per
      Bbl) | (in
      thousands) | |||||||
| First
      quarter 2008 - | |||||||||
| NYMEX
      WTI | 493,000 | $ | 69.52 | $ | (12,707 | ) | |||
| WCS | 45,000 | $ | 51.63 | (464 | ) | ||||
| Second
      quarter 2008 - | |||||||||
| NYMEX
      WTI | 459,000 | $ | 69.10 | (11,157 | ) | ||||
| WCS | 45,000 | $ | 53.69 | (296 | ) | ||||
| Third
      quarter 2008 - | |||||||||
| NYMEX
      WTI | 438,000 | $ | 69.22 | (9,814 | ) | ||||
| WCS | 45,000 | $ | 54.03 | (206 | ) | ||||
| Fourth
      quarter 2008 - | |||||||||
| NYMEX
      WTI | 405,000 | $ | 68.79 | (8,645 | ) | ||||
| WCS | 15,000 | $ | 50.42 | (107 | ) | ||||
| 2009 - | |||||||||
| NYMEX
      WTI | 1,363,000 | $ | 67.74 | (26,439 | ) | ||||
| 2010 - | |||||||||
| NYMEX
      WTI | 1,239,000 | $ | 66.47 | (22,068 | ) | ||||
| 2011 - | |||||||||
| NYMEX
      WTI | 1,032,000 | $ | 65.36 | (18,312 | ) | ||||
| All
      oil swap contracts | $ | (110,215 | ) | ||||||
| Oil
      Collars | |||||||||||
| Contract
      Period | NYMEX
      WTI Volumes | Weighted- Average Floor Price | Weighted- Average Ceiling Price | Fair
      Value at December
      31, 2007 Asset/(Liability) | |||||||
| (Bbl) | (per
      Bbl) | (per
      Bbl) | (in
      thousands) | ||||||||
| First
      quarter 2008 | 415,000 | $ | 50.00 | $ | 69.83 | $ | (10,580 | ) | |||
| Second
      quarter 2008 | 415,000 | $ | 50.00 | $ | 69.83 | (9,876 | ) | ||||
| Third
      quarter 2008 | 419,000 | $ | 50.00 | $ | 69.82 | (9,385 | ) | ||||
| Fourth
      quarter 2008 | 419,000 | $ | 50.00 | $ | 69.82 | (9,012 | ) | ||||
| 2009 | 1,526,000 | $ | 50.00 | $ | 67.31 | (32,858 | ) | ||||
| 2010 | 1,367,500 | $ | 50.00 | $ | 64.91 | (29,056 | ) | ||||
| 2011 | 1,236,000 | $ | 50.00 | $ | 63.70 | (26,176 | ) | ||||
| All
      oil collars | $ | (126,943 | ) | ||||||||
| Gas
      Swaps | ||||||||
| Contract
      Period | Volumes | Weighted- Average Contract Price | Fair
      Value at December
      31, 2007 Asset/(Liability) | |||||
| (MMBtu) | (per
      MMBtu) | (in
      thousands) | ||||||
| First
      quarter 2008 - | ||||||||
| IF
      CIG | 780,000 | $ | 8.94 | $ | 2,104 | |||
| IF
      PEPL | 1,410,000 | $ | 9.28 | 3,990 | ||||
| IF
      NGPL | 330,000 | $ | 7.53 | 366 | ||||
| IF
      ANR OK | 330,000 | $ | 7.68 | 408 | ||||
| IF
      EL PASO | 220,000 | $ | 7.94 | 284 | ||||
| IF
      HSC | 1,120,000 | $ | 8.64 | 1,726 | ||||
| Second
      quarter 2008 - | ||||||||
| IF
      CIG | 780,000 | $ | 7.00 | 561 | ||||
| IF
      PEPL | 1,420,000 | $ | 7.22 | 1,077 | ||||
| IF
      NGPL | 240,000 | $ | 6.41 | (18 | ) | |||
| IF
      ANR OK | 240,000 | $ | 6.66 | (17 | ) | |||
| IF
      EL PASO | 260,000 | $ | 6.72 | 1 | ||||
| IF
      HSC | 1,180,000 | $ | 7.66 | 276 | ||||
| Third
      quarter 2008 - | ||||||||
| IF
      CIG | 780,000 | $ | 6.70 | 148 | ||||
| IF
      PEPL | 1,460,000 | $ | 7.48 | 1,046 | ||||
| IF
      NGPL | 190,000 | $ | 6.69 | (26 | ) | |||
| IF
      ANR OK | 190,000 | $ | 6.82 | 31 | ||||
| IF
      EL PASO | 280,000 | $ | 7.16 | 2 | ||||
| IF
      HSC | 1,200,000 | $ | 7.95 | 241 | ||||
| Fourth
      quarter 2008 - | ||||||||
| IF
      CIG | 780,000 | $ | 7.30 | 400 | ||||
| IF
      PEPL | 1,490,000 | $ | 8.32 | 1,849 | ||||
| IF
      NGPL | 160,000 | $ | 7.10 | 2 | ||||
| IF
      ANR OK | 160,000 | $ | 7.18 | 19 | ||||
| IF
      EL PASO | 300,000 | $ | 7.20 | (29 | ) | |||
| IF
      HSC | 1,400,000 | $ | 8.44 | 562 | ||||
| 2009
      - | ||||||||
| IF
      CIG | 1,710,000 | $ | 7.79 | 998 | ||||
| IF
      PEPL | 3,360,000 | $ | 8.06 | 2,189 | ||||
| IF
      NGPL | 440,000 | $ | 7.11 | (176 | ) | |||
| IF
      ANR OK | 440,000 | $ | 7.38 | (59 | ) | |||
| IF
      EL PASO | 1,200,000 | $ | 7.11 | (646 | ) | |||
| IF
      HSC | 6,320,000 | $ | 8.35 | 447 | ||||
| Gas Swaps
      (continued) | |||||||||
| Contract
      Period | Volumes | Weighted- Average Contract Price | Fair
      Value at December
      31, 2007 Asset/(Liability) | ||||||
| (MMBtu) | (per
      MMBtu) | (in
      thousands) | |||||||
| 2010 - | |||||||||
| IF
      ANR OK | 60,000 | $ | 7.98 | (18 | ) | ||||
| IF
      NGPL | 60,000 | $ | 7.60 | (37 | ) | ||||
| IF
      EL PASO | 1,090,000 | $ | 6.79 | (1,065 | ) | ||||
| IF
      HSC | 3,460,000 | $ | 8.25 | (421 | ) | ||||
| 2011 - | |||||||||
| IF
      EL PASO | 880,000 | $ | 6.34 | (1,220 | ) | ||||
| All
      gas swap contracts | $ | 14,995 | |||||||
| Gas
      Collars | |||||||||||
| Contract
      Period | Volumes | Weighted- Average Floor Price | Weighted- Average Ceiling Price | Fair
      Value at December
      31, 2007 Asset/(Liability) | |||||||
| (MMBtu) | (per
      MMBtu) | (per
      MMBtu) | (in
      thousands) | ||||||||
| First
      quarter 2008 - | |||||||||||
| IF
      CIG | 720,000 | $ | 5.60 | $ | 8.72 | $ | 35 | ||||
| IF
      PEPL | 1,642,500 | $ | 6.28 | $ | 9.42 | 329 | |||||
| IF
      HSC | 240,000 | $ | 6.57 | $ | 9.70 | 19 | |||||
| NYMEX
      Henry Hub | 120,000 | $ | 7.00 | $ | 10.57 | 14 | |||||
| Second
      quarter 2008 - | |||||||||||
| IF
      CIG | 720,000 | $ | 5.60 | $ | 8.72 | 115 | |||||
| IF
      PEPL | 1,642,500 | $ | 6.28 | $ | 9.42 | 662 | |||||
| IF
      HSC | 240,000 | $ | 6.57 | $ | 9.70 | 30 | |||||
| NYMEX
      Henry Hub | 120,000 | $ | 7.00 | $ | 10.57 | 31 | |||||
| Third
      quarter 2008 - | |||||||||||
| IF
      CIG | 720,000 | $ | 5.60 | $ | 8.72 | 71 | |||||
| IF
      PEPL | 1,657,500 | $ | 6.28 | $ | 9.42 | 549 | |||||
| IF
      HSC | 240,00 | $ | 6.57 | $ | 9.70 | (1 | ) | ||||
| NYMEX
      Henry Hub | 120,000 | $ | 7.00 | $ | 10.57 | 25 | |||||
| Fourth
      quarter 2008 - | |||||||||||
| IF
      CIG | 720,000 | $ | 5.60 | $ | 8.72 | (35 | ) | ||||
| IF
      PEPL | 1,657,500 | $ | 6.28 | $ | 9.42 | 314 | |||||
| IF
      HSC | 240,000 | $ | 6.57 | $ | 9.70 | (47 | ) | ||||
| NYMEX
      Henry Hub | 120,000 | $ | 7.00 | $ | 10.57 | (8 | ) | ||||
| Gas Collars
      (continued) | |||||||||||
| Contract
      Period | Volumes | Weighted- Average Floor Price | Weighted- Average Ceiling Price | Fair
      Value at December
      31, 2007 Asset/(Liability) | |||||||
| (MMBtu) | (per
      MMBtu) | (per
      MMBtu) | (in
      thousands) | ||||||||
| 2009 - | |||||||||||
| IF
      CIG | 2,400,000 | $ | 4.75 | $ | 8.82 | (1,036 | ) | ||||
| IF
      PEPL | 5,510,000 | $ | 5.30 | $ | 9.25 | (2,036 | ) | ||||
| IF
      HSC | 840,000 | $ | 5.57 | $ | 9.49 | (516 | ) | ||||
| NYMEX
      Henry Hub | 360,000 | $ | 6.00 | $ | 10.35 | (164 | ) | ||||
| 2010 - | |||||||||||
| IF
      CIG | 2,040,000 | $ | 4.85 | $ | 7.08 | (1,940 | ) | ||||
| IF
      PEPL | 4,945,000 | $ | 5.31 | $ | 7.61 | (4,740 | ) | ||||
| IF
      HSC | 600,000 | $ | 5.57 | $ | 7.88 | (712 | ) | ||||
| NYMEX
      Henry Hub | 240,000 | $ | 6.00 | $ | 8.38 | (252 | ) | ||||
| 2011 - | |||||||||||
| IF
      CIG | 1,800,000 | $ | 5.00 | $ | 6.32 | (2,350 | ) | ||||
| IF
      PEPL | 4,225,000 | $ | 5.31 | $ | 6.51 | (6,066 | ) | ||||
| IF
      HSC | 480,000 | $ | 5.57 | $ | 6.77 | (816 | ) | ||||
| NYMEX
      Henry Hub | 120,000 | $ | 6.00 | $ | 7.25 | (181 | ) | ||||
| All
      gas collars | $ | (18,706 | ) | ||||||||
| Natural Gas Liquid
      Swaps | ||||||||
| Volumes | Weighted- Average Contract Price | Fair
      Value at December
      31, 2007 Asset/(Liability) | ||||||
| (Bbls) | (per
      Bbl) | (in
      thousands) | ||||||
| First
      quarter 2008 | 151,000 | $ | 39.54 | $ | (3,581 | ) | ||
| Second
      quarter 2008 | 170,000 | $ | 39.49 | (3,190 | ) | |||
| Third
      quarter 2008 | 194,000 | $ | 39.25 | (3,403 | ) | |||
| Fourth
      quarter 2008 | 217,000 | $ | 38.63 | (4,026 | ) | |||
| 2009 | 627,000 | $ | 38.61 | (9,053 | ) | |||
| All
      natural gas liquid swaps | $ | (23,253 | ) | |||||
| Contractual
      Obligations | Total | Less
      than 1 year | 1-3
      years | 3-5
      years | More
      than 5 years | |||||||||||
| Long-Term
      Debt | $ | 615.3 | $ | 10.1 | $ | 315.2 | $ | 290.0 | $ | - | ||||||
| Operating
      Leases | 44.2 | 29.1 | 13.0 | 1.9 | 0.2 | |||||||||||
| Other
      Long-Term Liabilities | 511.8 | 141.8 | 238.5 | 130.6 | 0.9 | |||||||||||
| Total | $ | 1,171.3 | $ | 181.0 | $ | 566.7 | $ | 422.5 | $ | 1.1 | ||||||
| Years
      Ended December 31, | |||||||||||
| 2007 | 2006 | 2005 | |||||||||
| BCFE | Percent
      of total | BCFE | Percent
      of total | BCFE | Percent of
      total | ||||||
| Change | Additions | Change | Additions | Change | Additions | ||||||
| Revisions
      resulting | |||||||||||
| from
      price changes | 34.5 | 13% | (52.2 | ) | (23)% | 23.1 | 10% | ||||
| Revisions
      resulting |  | ||||||||||
| from
      performance | 6.4 | 2% |  | 66.3 | 29% | 10.8 | 5% | ||||
| Total | 40.9 | 15% | 14.1 | 6% | 33.9 | 15% | |||||
| Years
      Ended December 31, | |||||||||||
| 2007 | 2006 | 2005 | |||||||||
| BCFE | Percent | BCFE | Percent | BCFE | Percent | ||||||
| Change | Change | Change | Change | Change | Change | ||||||
| A
      10% decrease in pricing | (16.3 | ) | (2)% | (28.2 | ) | (3)% | (28.9 | ) | (4)% | ||
| A
      10% decrease in proved | |||||||||||
| undeveloped
      reserves | (25.0 | ) | (2)% | (20.0 | ) | (2)% | (14.6 | ) | (2)% | ||
| Change
      Between Years | ||||||
| Oil and Gas Production
      Revenues: | 2007
      and 2006 | 2006
      and 2005 | ||||
| Increase
      in oil and gas production Revenues,
      net of hedging (in thousands) | $ | 177,664 | $ | 47,908 | ||
| Oil | ||||||
| Realized
      price change per Bbl, net of hedging | $ | 6.00 | $ | 5.67 | ||
| Realized
      price percentage change | 11% | 11% | ||||
| Production
      change (MBbl) | 851 | 130 | ||||
| Production
      percentage change | 14% | 2% | ||||
| Natural
      Gas | ||||||
| Realized
      price change per Mcf, net of hedging | $ | 0.26 | $ | (0.53 | ) | |
| Realized
      price percentage change | 4% | (7)% | ||||
| Production
      change (MMcf) | 9,613 | 4,646 | ||||
| Production
      percentage change | 17% | 9% | ||||
| Years
      Ended December 31, | |||||||
| Revenue | 2007 | 2006 | 2005 | ||||
| Oil | 46% | 45% | 42% | ||||
| Natural
      Gas | 54% | 55% | 58% | ||||
| Production | |||||||
| Oil | 39% | 39% | 41% | ||||
| Natural
      Gas | 61% | 61% | 59% | ||||
| Years
      Ended December 31, | |||||||||
| 2007 | 2006 | 2005 | |||||||
| Oil
      Hedging | |||||||||
| Percentage
      of oil production hedged | 66% | 66% | 24% | ||||||
| Oil
      volumes hedged (MBbl) | 4,565 | 4,021 | 1,419 | ||||||
| Decrease
      in oil revenue | $ | (34.3
      million | ) | $ | (16.6
      million | ) | $ | (13.3
      million | ) | 
| Average
      realized oil price per Bbl before hedging | $ | 67.56 | $ | 59.33 | $ | 53.18 | |||
| Average
      realized oil price per Bbl after hedging | $ | 62.60 | $ | 56.60 | $ | 50.93 | |||
| Natural Gas
      Hedging | |||||||||
| Percentage
      of gas production hedged | 46% | 40% | 25% | ||||||
| Natural
      gas volumes hedged (MMBtu) | $ | 32.5
      million | $ | 24.2
      million | $ | 14.0
      million | |||
| Increase
      (decrease) in gas revenue | $ | 58.7
      million | $ | 44.7
      million | $ | (9.2
      million | ) | ||
| Average
      realized gas price per Mcf before hedging | $ | 6.74 | $ | 6.58 | $ | 8.08 | |||
| Average
      realized gas price per Mcf after hedging | $ | 7.63 | $ | 7.37 | $ | 7.90 | |||
| Years
      Ended December 31, | ||||||||
| Summary of Exploration
      Expense (in millions) | 2007 | 2006 | 2005 | |||||
| Geological
      and geophysical expenses | $ | 17.0 | $ | 9.5 | $ | 7.9 | ||
| Exploratory
      dry holes | 14.4 | 10.2 | 8.1 | |||||
| Overhead
      and other expenses | 27.3 | 32.2 | 28.9 | |||||
| Total | $ | 58.7 | $ | 51.9 | $ | 44.9 | ||
| Average
      Net Daily Production  Added | Oil
      and Gas  Revenue
      Added | Production Costs
      Added | ||||||
| (MMCFE) | (In
      millions) | (In
      millions) | ||||||
| Sweetie
      Peck acquisition and drilling, Permian Basin region | 15.8 | 65.2 | 9.3 | |||||
| Rockford
      acquisition and drilling | 1.6 | 4.6 | 1.0 | |||||
| Williston
      Basin Middle Bakken Play | 2.2 | 11.4 | 1.9 | |||||
| Elm
      Grove Field | 6.3 | 16.2 | 2.0 | |||||
| James
      Lime formation | 3.4 | 8.9 | 1.0 | |||||
| Anadarko
      Basin fields | 8.5 | 22.1 | 3.4 | |||||
| Woodford
      shale formation – horizontal wells | 5.7 | 11.5 | 1.1 | |||||
| Other
      wells completed in 2007 and 2006 | 54.4 | 85.1 | 13.7 | |||||
| Other
      acquisitions | 4.1 | 12.1 | 3.3 | |||||
| Total | 102.0 | 237.1 | 36.7 | |||||
|     ·   | A
      $0.02 increase in overall transportation cost due to an increase in the
      Rocky Mountain region resulting from a change in the sale measurement
      point, as well as newly drilled wells with higher transportation
      costs | 
|  | · | A
      $0.11 increase in recurring lease operating expense related to continued
      cost pressure from the oil and gas service
  sector | 
|  | · | A
      $0.05 overall decrease in lease operating expense relating to workover
      expense, primarily in the Rockies | 
|     ·   | A
      $0.04 increase in production taxes related to increase production in the
      Permian region. | 
| Average
      Net Daily Production  Added | Oil
      and Gas  Revenue
      Added | Production Costs
      Added | |||||||
| (MMCFE) | (In
      millions) | (In
      millions) | |||||||
| Williston
      Basin Middle Bakken Play | 6.2 | 23.5 | 2.5 | ||||||
| Wold
      acquisition | 3.1 | 9.2 | 5.2 | ||||||
| Other
      wells completed in 2006 and 2005 | 47.2 | 80.8 | 15.3 | ||||||
| Other
      acquisitions | 2.9 | 9.7 | 1.4 | ||||||
| Total | 59.4 | 123.2 | 24.4 | ||||||
|     ·   | A
      $0.02 decrease in production taxes, due to a $0.04 decrease in our Rocky
      Mountain region resulting from an increase in new production, which
      qualifies for incentive tax rates, that was partially offset by a minor
      increase in our Mid-Continent region resulting from higher natural gas
      revenues | 
|     ·   | A
      $0.03 increase in overall transportation cost, due to an increase in the
      Rocky Mountain region resulting from a change in the sale measurement
      point, as well as newly drilled wells with higher transportation
      costs | 
|     ·   | A
      $0.20 increase in recurring LOE related to continued increases in costs
      for oil and gas service sector
resources | 
|     ·   | A
      $0.06 overall increase in LOE relating to workover charges, mainly due to
      activity in the Rockies. | 
| ITEM
      7A. | QUANTITATIVE
      AND QUALITATIVE DISCLOSURES ABOUT MARKET
RISK | 
| ITEM
      9. | CHANGES
      IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL
      DISCLOSURE | 
| ITEM
      9A. | CONTROLS
      AND PROCEDURES | 
| (i)   | pertain
      to the maintenance of records that, in reasonable detail, accurately and
      fairly reflect the transactions and dispositions of the assets of the
      Company; | 
| (ii)   | provide
      reasonable assurance that transactions are recorded as necessary to permit
      preparation of financial statements in accordance with generally accepted
      accounting principles, and that receipts and expenditures of the Company
      are being made only in accordance with authorizations of management and
      directors of the Company; and | 
| (iii)   | provide
      reasonable assurance regarding prevention or timely detection of
      unauthorized acquisition, use, or disposition of the Company’s assets that
      could have a material effect on the financial
  statements. | 
| /s/ ANTHONY J.
      BEST | /s/ DAVID W.
      HONEYFIELD | 
| Anthony
      J. Best | David
      W. Honeyfield | 
| President
      and Chief Executive Officer | Senior
      Vice President – Chief Financial Officer and Secretary | 
| February
      21, 2008 | February
      21, 2008 | 
| ITEM
      13. | CERTAIN
      RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR
      INDEPENDENCE | 
| ITEM
      15. | EXHIBITS
      AND FINANCIAL STATEMENT SCHEDULES | 
| Audit Report of Independent
      Registered Public Accounting Firm | F-1 | |
| Consolidated Balance
      Sheets | F-2 | |
| Consolidated Statements of
      Operations | F-3 | |
| Consolidated Statements of
      Stockholders' Equity and Comprehensive Income | F-4 | |
| Consolidated Statements of Cash
      Flows | F-5 | |
| Notes to Consolidated Financial
      Statements | F-7 | 
| Exhibit Number | Description | 
| 2.1 | Purchase
      and Sale Agreement dated November 1, 2006, among Henry Petroleum LP, Henry
      Holding LP, Henry Group, Entre Energy Partners LP, and St. Mary Land &
      Exploration Company (filed as Exhibit 2.1 to the registrant’s Current
      Report on Form 8-K filed on December 18, 2006, and incorporated herein by
      reference) | 
| 2.2 | Purchase
      and Sale Agreement dated August 2, 2007, among Rockford Energy Partners
      II, LLC and St. Mary Land & Exploration Company (filed as
      Exhibit 2.1 to the registrant’s Current Report on Form 8-K filed on
      October 5, 2007, and incorporated herein by
      reference) | 
| 2.3 | Purchase
      and Sale Agreement dated December 11, 2007, among St. Mary Land &
      Exploration Company, Ralph H. Smith Restated Revocable Trust Dated
      8/14/97, Ralph H. Smith Trustee, Kent J. Harrell, Trustee of the Kent J.
      Harrell Revocable Trust Dated January 19, 1995, and Abraxas Operating, LLC
      (filed as Exhibit 2.1 to the registrant’s Current Report on Form 8-K filed
      on February 1, 2008, and incorporated herein by
  reference) | 
| 2.4 | Ratification
      and Joinder Agreement dated January 31, 2008, among St. Mary Land &
      Exploration Company, Ralph H. Smith, Kent J. Harrell, Abraxas Operating,
      LLC and Abraxas Petroleum Corporation (filed as Exhibit 2.2 to the
      registrant’s Current Report on Form 8-K filed on February 1, 2008, and
      incorporated herein by reference) | 
| 3.1 | Restated
      Certificate of Incorporation of St. Mary Land & Exploration
      Company as amended on May 25, 2005 (filed as Exhibit 3.1 to the
      registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30,
      2005 and incorporated herein by reference) | 
| 3.2 | Restated
      By-Laws of St. Mary Land & Exploration Company amended as of December
      18, 2007 (filed as Exhibit 3.1 to the registrant’s Current Report on Form
      8-K filed on December 21, 2007, and incorporated herein by
      reference) | 
| Exhibit Number | Description | 
| 4.1 | Shareholder
      Rights Plan adopted on July 15, 1999 (filed as Exhibit 4.1 to the
      registrant’s Quarterly Report on Form 10-Q/A for the quarter ended June
      30, 1999 and incorporated herein by reference) | 
| 4.2 | First
      Amendment to Shareholders Rights Plan dated March 15, 2002 as
      adopted by the Board of Directors on July 19, 2001 (filed as Exhibit 4.2
      to the registrant’s Annual Report on Form 10-K for the year ended December
      31, 2001 and incorporated herein by reference) | 
| 4.3 | Second
      Amendment to Shareholder Rights Plan dated April 24, 2006 (filed as
      Exhibit 4.1 to the registrant’s Quarterly Report on Form 10-Q for the
      quarter ended March 31, 2006 and incorporated herein by
      reference) | 
| 4.4 | Indenture
      related to the 3.50% Senior Convertible Notes due 2027, dated as of April
      4, 2007, between St. Mary Land & Exploration Company and Wells Fargo
      Bank, National Association, as trustee (including the form of 3.50% Senior
      Convertible Note due 2027) (filed as Exhibit 4.1 to the registrant’s
      Current Report on Form 8-K filed on April 4, 2007, and incorporated herein
      by reference) | 
| 4.5 | Registration
      Rights Agreement, dated as of April 4, 2007, among St. Mary Land &
      Exploration Company and Merrill Lynch, Pierce, Fenner & Smith
      Incorporated and Wachovia Capital Markets, LLC, for themselves and as
      representatives of the Initial Purchasers (filed as Exhibit 4.2 to the
      registrant’s Current Report on Form 8-K filed on April 4, 2007, and
      incorporated herein by reference) | 
| 10.1† | Stock
      Option Plan, as Amended on May 22, 2003 (filed as Exhibit 99.1 to the
      registrant’s Registration Statement on Form S-8 (Registration No.
      333-106438) and incorporated herein by reference) | 
| 10.2† | Incentive
      Stock Option Plan, as Amended on May 22, 2003 (filed as Exhibit
      99.2 to registrant’s Registration Statement on Form S-8 (Registration No.
      333-106438) and incorporated herein by reference) | 
| 10.3† | Cash
      Bonus Plan (filed as Exhibit 10.5 to the registrant’s Registration
      Statement on Form S-1 (Registration No. 33-53512) and incorporated herein
      by reference) | 
| 10.4† | Summary
      Plan Description/Pension Plan dated December 30, 1994 (filed as Exhibit
      10.35 to the registrant’s Annual Report on Form 10-K for the year ended
      December 31, 1994 and incorporated herein by
    reference) | 
| 10.5† | Non-qualified
      Unfunded Supplemental Retirement Plan, as amended (filed as Exhibit 10.8
      to the registrant’s Registration Statement on Form S-1 (Registration No.
      33-53512) and incorporated herein by reference) | 
| 10.6† | Employee
      Stock Purchase Plan (filed as Exhibit 10.48 filed to the registrant’s
      Annual Report on Form 10-K for the year ended December 31, 1997 and
      incorporated herein by reference) | 
| 10.7† | First
      Amendment to Employee Stock Purchase Plan dated February 27, 2001 (filed
      as Exhibit 10.1 to the registrant’s Quarterly Report on Form 10-Q for the
      quarter ended June 30, 2001 and incorporated herein by
      reference) | 
| 10.8† | Second
      Amendment to the Employee Stock Purchase Plan dated February 18, 2005
      (filed as Exhibit 10.48 to the registrants Annual Report on Form 10-K for
      the year ended December 31, 2004 and incorporated herein by
      reference) | 
| 10.9† | Form
      of Change of Control Severance Agreements (filed as Exhibit 10.1 to the
      registrant’s Quarterly Report on Form 10-Q for the quarter ended September
      30, 2001 and incorporated herein by reference) | 
| 10.10† | Amendment
      to Form of Change of Control Severance Agreement (filed as Exhibit 10.9 to
      the registrant’s Quarterly Report on Form 10-Q for the quarter ended June
      30, 2005 and incorporated herein by reference) | 
| 10.11 | 5.75%
      Senior Convertible Notes due 2022 Indenture dated March 13, 2002
      (filed as Exhibit 10.26 to the registrant’s Annual Report on Form 10-K for
      the year ended December 31, 2001 and incorporated herein by
      reference) | 
| 10.12 | Amendment
      to and Extension of Office Lease dated as of December 14, 2001 (filed as
      Exhibit 10.45 to the registrant’s Annual Report on Form 10-K for the year
      ended December 31, 2003 and incorporated herein by
      reference) | 
| Exhibit Number | Description | 
| 10.13† | Non-Employee
      Director Stock Compensation Plan as adopted on March 27, 2003 (filed as
      Exhibit 10.1 to the registrant’s Quarterly Report on Form 10-Q for the
      quarter ended June 30, 2003 and incorporated herein by
      reference) | 
| 10.14† | Restricted
      Stock Plan as adopted on April 18, 2004 (filed as Exhibit 10.1 to the
      registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30,
      2004 and incorporated herein by reference) | 
| 10.15† | Amendment
      to Restricted Stock Plan, dated December 15, 2005 (filed as Exhibit 10.2
      to the registrant’s Current Report on Form 8-K filed on December 19, 2005
      and incorporated herein by reference) | 
| 10.16† | Form
      of Restricted Stock Unit Award Agreement under the Restricted Stock Plan
      (filed as Exhibit 10.1 to the registrant’s Current Report on Form 8-K
      filed on March 15, 2005 and incorporated herein by
    reference) | 
| 10.17 | Amended
      and Restated Credit Agreement dated as of April 7, 2005 among St. Mary
      Land & Exploration Company, Wachovia Bank, National Association, as
      Administrative Agent, and the Lenders party thereto (filed as Exhibit 10.1
      to the registrant’s Quarterly Report on Form 10-Q for the quarter ended
      March 31, 2005 and incorporated herein by reference) | 
| 10.18 | 2006
      Equity Incentive Compensation Plan (filed on May 17, 2006 as Exhibit 99.1
      to the registrant’s Registration Statement on Form S-8 (Registration No.
      333-134221) and incorporated herein by reference) | 
| 10.19 | Form
      of Non-Employee Director Restricted Stock Award Agreement (filed as
      Exhibit 10.2 to the registrant’s Current Report on Form 8-K filed on May
      18, 2006 and incorporated herein by reference) | 
| 10.20 | Guaranty
      Agreement by St. Mary Energy Company in favor of Wachovia Bank,
      National Association, as Administrative Agent, dated April 7, 2005 (filed
      as Exhibit 10.2 to the registrant’s Quarterly Report on Form 10-Q for the
      quarter ended March 31, 2005 and incorporated herein by
      reference) | 
| 10.21 | Guaranty
      Agreement by Nance Petroleum Corporation in favor of Wachovia Bank,
      National Association, as Administrative Agent, dated April 7, 2005 (filed
      as Exhibit 10.3 to the registrant’s Quarterly Report on Form 10-Q for the
      quarter ended March 31, 2005 and incorporated herein by
      reference) | 
| 10.22 | Guaranty
      Agreement by NPC Inc. in favor of Wachovia Bank, National Association, as
      Administrative Agent, dated April 7, 2005 (filed as Exhibit 10.4 to the
      registrant’s Quarterly Report on Form 10-Q for the quarter ended March 31,
      2005 and incorporated herein by reference) | 
| 10.23 | Pledge
      and Security Agreement between St. Mary Land & Exploration
      Company and Wachovia Bank, National Association, as Administrative Agent,
      dated April 7, 2005 (filed as Exhibit 10.5 to the registrant’s Quarterly
      Report on Form 10-Q for the quarter ended March 31, 2005 and incorporated
      herein by reference) | 
| 10.24 | Pledge
      and Security Agreement between Nance Petroleum Corporation and Wachovia
      Bank, National Association, as Administrative Agent, dated April 7, 2005
      (filed as Exhibit 10.6 to the registrant’s Quarterly Report on Form 10-Q
      for the quarter ended March 31, 2005 and incorporated herein by
      reference) | 
| 10.25 | First
      Supplement and Amendment to Deed of Trust, Mortgage, Line of Credit
      Mortgage, Assignment, Security Agreement, Fixture Filing and Financing
      Statement for the benefit of Wachovia Bank, National Association, as
      Administrative Agent, dated effective as of April 7, 2005 (filed as
      Exhibit 10.7 to the registrant’s Quarterly Report on Form 10-Q for the
      quarter ended March 31, 2005 and incorporated herein by
      reference) | 
| 10.26 | Deed
      of Trust – St. Mary Land & Exploration to Wachovia Bank, National
      Association, as Administrative Agent, dated effective as of April 7, 2005
      (filed as Exhibit 10.8 to the registrant’s Quarterly Report on Form 10-Q
      for the quarter ended March 31, 2005 and incorporated herein by
      reference) | 
| Exhibit Number | Description | 
| 10.27† | Net
      Profits Interest Bonus Plan, as Amended on December 15, 2005 (filed as
      Exhibit 10.1 to the registrant’s Current Report on Form 8-K filed on
      December 19, 2005 and incorporated herein by reference) | 
| 10.28 | Summary
      of Charitable Contributions in Honor of Thomas E. Congdon (filed as
      Exhibit 10.4 to the registrant’s Current Report on Form 8-K filed on
      December 19, 2005 and incorporated herein by reference) | 
| 10.29† | Summary
      of 2006 Base Salaries for Named Executive Officers (filed as Exhibit 10.5
      to the registrant’s Current Report on Form 8-K filed on December 19, 2005
      and incorporated herein by reference) | 
| 10.30 | Employment
      Agreement of A.J. Best dated May 1, 2006 (filed as Exhibit 10.1 to the
      registrant’s Current Report on Form 8-K filed on May 4, 2006 and
      incorporated herein by reference) | 
| 10.31***† | Summary
      of 2008 Compensation Arrangements for Non-Employee
    Directors | 
| 10.32 | Purchase
      Agreement, dated March 29, 2007, among St. Mary Land & Exploration
      Company, Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner &
      Smith Incorporated, Wachovia Capital Markets, LLC, Bear, Stearns & Co.
      Inc., BNP Paribas Securities Corp., and UBS Securities LLC (filed as
      Exhibit 10.1 to the registrant’s Current Report on Form 8-K filed on April
      4, 2007, and incorporated herein by reference) | 
| 10.33 | First
      Amendment to Amended and Restated Credit Agreement, dated March 19, 2007,
      among St. Mary Land & Exploration Company, the Lenders party thereto,
      Wachovia Bank, National Association, as issuing bank and administrative
      agent, Wells Fargo Bank, N.A., as syndication agent, and BNP Paribas,
      Comerica Bank-Texas and JPMorgan Chase Bank, N.A., as co-documentation
      agents (filed as Exhibit 10.2 to the registrant’s Current Report on Form
      8-K filed on April 4, 2007, and incorporated herein by
      reference) | 
| 10.34 | Net
      Profits Interest Bonus Plan, As Amended and Restated by the Board of
      Directors on July 19, 2007 (filed as Exhibit 10.1 to the registrant’s
      Current Report on Form 8-K filed on July 25, 2007, and
      incorporated herein by reference) | 
| 12.1*** | Computation
      of Ratio of Earnings to Fixed Charges | 
| 14.1 | Code
      of Business Conduct and Ethics (filed as Exhibit 14.1 to the registrant’s
      Annual Report on Form 10-K for the year ended December 31, 2003 and
      incorporated herein by reference) | 
| 21.1*** | Subsidiaries
      of Registrant | 
| 23.1* | Consent
      of Deloitte & Touche LLP | 
| 23.2* | Consent
      of Ryder Scott Company L.P. | 
| 23.3* | Consent
      of Netherland, Sewell & Associates, Inc. | 
| 24.1*** | Power
      of Attorney | 
| 31.1* | Certification
      of Chief Executive Officer pursuant to Section 302 of the
      Sarbanes – Oxley Act of 2002 | 
| 31.2* | Certification
      of Chief Financial Officer pursuant to Section 302 of the
      Sarbanes – Oxley Act of 2002 | 
| 32.1** | Certification
      pursuant to U.S.C. Section 1350 as adopted pursuant to Section 906 of the
      Sarbanes – Oxley Act of
2002 | 
|  | 
|  | * | Filed
      with this Form 10-K/A. | 
|  | ** | Furnished
      with this Form 10-K/A. | 
| *** | Previously filed. | |
|  | † | Exhibit
      constitutes a management contract or compensatory plan or
      arrangement. | 
| PART
      II.  FINANCIAL INFORMATION | ||||||||
| ITEM
      8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA | ||||||||
| ST.
      MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES | ||||||||
| CONSOLIDATED
      BALANCE SHEETS | ||||||||
| (In
      thousands, except share amounts) | ||||||||
| December
      31, | December
      31, | |||||||
|                                                          ASSETS | 2007 | 2006 | ||||||
| Current
      assets: | ||||||||
| Cash
      and cash equivalents | $ | 43,510 | $ | 1,464 | ||||
| Short-term
      investments | 1,173 | 1,450 | ||||||
| Accounts
      receivable | 159,149 | 142,721 | ||||||
| Refundable
      income taxes | 933 | 7,684 | ||||||
| Prepaid
      expenses and other | 14,129 | 17,485 | ||||||
| Accrued
      derivative asset | 17,836 | 56,136 | ||||||
| Deferred
      income taxes | 33,211 | - | ||||||
| Total
      current assets | 269,941 | 226,940 | ||||||
| Property
      and equipment (successful efforts method), at cost: | ||||||||
| Proved
      oil and gas properties | 2,721,229 | 2,063,911 | ||||||
| Less
      - accumulated depletion, depreciation, and amortization | (804,785 | ) | (630,051 | ) | ||||
| Unproved
      oil and gas properties, net of impairment allowance | ||||||||
| of
      $10,319 in 2007 and $9,425 in 2006 | 134,386 | 100,118 | ||||||
| Wells
      in progress | 137,417 | 97,498 | ||||||
| Oil
      and gas properties held for sale less accumulated
    depletion, | ||||||||
| depreciation,
      and amortization | 76,921 | - | ||||||
| Other
      property and equipment, net of accumulated depreciation | ||||||||
| of
      $11,549 in 2007 and $9,740 in 2006 | 9,230 | 6,988 | ||||||
| 2,274,398 | 1,638,464 | |||||||
| Noncurrent
      assets: | ||||||||
| Goodwill | 9,452 | 9,452 | ||||||
| Accrued
      derivative asset | 5,483 | 16,939 | ||||||
| Other
      noncurrent assets | 12,406 | 7,302 | ||||||
| Total
      noncurrent assets | 27,341 | 33,693 | ||||||
| Total
      Assets | $ | 2,571,680 | $ | 1,899,097 | ||||
| LIABILITIES
      AND STOCKHOLDERS' EQUITY | ||||||||
| Current
      liabilities: | ||||||||
| Accounts
      payable and accrued expenses | $ | 254,918 | $ | 171,834 | ||||
| Short-term
      note payable | - | 4,469 | ||||||
| Accrued
      derivative liability | 97,627 | 13,100 | ||||||
| Deferred
      income taxes | - | 14,667 | ||||||
| Deposit
      associated with oil and gas properties held for sale | 10,000 | - | ||||||
| Total
      current liabilities | 362,545 | 204,070 | ||||||
| Noncurrent
      liabilities: | ||||||||
| Long-term
      credit facility | 285,000 | 334,000 | ||||||
| Senior
      convertible notes | 287,500 | 99,980 | ||||||
| Asset
      retirement obligation | 96,432 | 77,242 | ||||||
| Asset
      retirement obligation associated with oil and gas properties held for
      sale | 8,744 | - | ||||||
| Net
      Profits Plan liability | 211,406 | 160,583 | ||||||
| Deferred
      income taxes | 257,603 | 224,518 | ||||||
| Accrued
      derivative liability | 190,262 | 46,432 | ||||||
| Other
      noncurrent liabilities | 8,843 | 8,898 | ||||||
| Total
      noncurrent liabilities | 1,345,790 | 951,653 | ||||||
| Commitments
      and contingencies | ||||||||
| Stockholders'
      equity: | ||||||||
| Common
      stock, $0.01 par value: authorized - 200,000,000
    shares; | ||||||||
| issued:  64,010,832
      shares in 2007 and 55,251,733 shares in 2006; | ||||||||
| outstanding,
      net of treasury shares:  63,001,120 shares in
    2007 | ||||||||
| and
      55,001,733 shares in 2006 | 640 | 553 | ||||||
| Additional
      paid-in capital | 170,070 | 38,940 | ||||||
| Treasury
      stock, at cost:  1,009,712 shares in 2007 and 250,000 shares in
      2006 | (29,049 | ) | (4,272 | ) | ||||
| Retained
      earnings | 878,652 | 695,224 | ||||||
| Accumulated
      other comprehensive income (loss) | (156,968 | ) | 12,929 | |||||
| Total
      stockholders' equity | 863,345 | 743,374 | ||||||
| Total
      Liabilities and Stockholders' Equity | $ | 2,571,680 | $ | 1,899,097 | ||||
| ST.
      MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES | ||||||||||||
| CONSOLIDATED
      STATEMENTS OF OPERATIONS | ||||||||||||
| (In
      thousands, except per share amounts) | ||||||||||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| Operating
      revenues: | ||||||||||||
| Oil
      and gas production revenue | $ | 912,093 | $ | 730,737 | $ | 733,544 | ||||||
| Realized
      oil and gas hedge gain (loss) | 24,484 | 28,176 | (22,539 | ) | ||||||||
| Marketed
      gas system revenue | 45,149 | 20,936 | 25,269 | |||||||||
| Gain
      (loss) on sale of proved properties | (367 | ) | 6,910 | 222 | ||||||||
| Other
      revenue | 8,735 | 942 | 3,094 | |||||||||
| Total
      operating revenues | 990,094 | 787,701 | 739,590 | |||||||||
| Operating
      expenses: | ||||||||||||
| Oil
      and gas production expense | 218,208 | 176,590 | 142,873 | |||||||||
| Depletion,
      depreciation, amortization, | ||||||||||||
|    
      and asset retirement obligation liability accretion | 227,596 | 154,522 | 132,758 | |||||||||
| Exploration | 58,686 | 51,889 | 44,931 | |||||||||
| Impairment
      of proved properties | - | 7,232 | - | |||||||||
| Abandonment
      and impairment of unproved properties | 4,756 | 4,301 | 5,780 | |||||||||
| General
      and administrative | 60,149 | 38,873 | 32,756 | |||||||||
| Change
      in Net Profits Plan liability | 50,823 | 23,759 | 106,263 | |||||||||
| Marketed
      gas system expense | 42,485 | 18,526 | 24,164 | |||||||||
| Unrealized
      derivative loss | 5,458 | 7,094 | 1,615 | |||||||||
| Other
      expense | 2,522 | 2,649 | 2,456 | |||||||||
| Total
      operating expenses | 670,683 | 485,435 | 493,596 | |||||||||
| Income
      from operations | 319,411 | 302,266 | 245,994 | |||||||||
| Nonoperating
      income (expense): | ||||||||||||
| Interest
      income | 746 | 1,576 | 456 | |||||||||
| Interest
      expense | (19,895 | ) | (8,521 | ) | (8,213 | ) | ||||||
| Income
      before income taxes | 300,262 | 295,321 | 238,237 | |||||||||
| Income
      tax expense | (110,550 | ) | (105,306 | ) | (86,301 | ) | ||||||
| Net
      income | $ | 189,712 | $ | 190,015 | $ | 151,936 | ||||||
| Basic
      weighted-average common shares outstanding | 61,852 | 56,291 | 56,907 | |||||||||
| Diluted
      weighted-average common shares outstanding | 64,850 | 65,962 | 66,894 | |||||||||
| Basic
      net income per common share | $ | 3.07 | $ | 3.38 | $ | 2.67 | ||||||
| Diluted
      net income per common share | $ | 2.94 | $ | 2.94 | $ | 2.33 | ||||||
| ST.
      MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES | ||||||||||||||||||||||||||||||||||||
| CONSOLIDATED
      STATEMENTS OF STOCKHOLDERS' EQUITY AND COMPREHENSIVE
INCOME | ||||||||||||||||||||||||||||||||||||
| (In
      thousands, except share amounts) | ||||||||||||||||||||||||||||||||||||
| Accumulated | ||||||||||||||||||||||||||||||||||||
| Additional | Deferred | Other | Total | |||||||||||||||||||||||||||||||||
| Common
      Stock | Paid-in | Treasury
      Stock | Stock-Based | Retained | Comprehensive | Stockholders' | ||||||||||||||||||||||||||||||
| Shares | Amount | Capital | Shares | Amount | Compensation | Earnings | Income
      (Loss) | Equity | ||||||||||||||||||||||||||||
| Balances,
      December 31, 2004 | 57,458,246 | $ | 574 | $ | 127,374 | (500,000 | ) | $ | (5,295 | ) | $ | (5,039 | ) | $ | 364,567 | $ | 2,274 | $ | 484,455 | |||||||||||||||||
| Comprehensive
      income, net of tax: | ||||||||||||||||||||||||||||||||||||
| Net
      income | - | - | - | - | - | - | 151,936 | - | 151,936 | |||||||||||||||||||||||||||
| Change
      in derivative instrument fair value | - | - | - | - | - | - | - | (71,522 | ) | (71,522 | ) | |||||||||||||||||||||||||
| Reclassification
      to earnings | - | - | - | - | - | - | - | 14,366 | 14,366 | |||||||||||||||||||||||||||
| Minimum
      pension liability adjustment | - | - | - | - | - | - | - | 283 | 283 | |||||||||||||||||||||||||||
| Total
      comprehensive income | 95,063 | |||||||||||||||||||||||||||||||||||
| Cash
      dividends, $ 0.10 per share | - | - | - | - | - | - | (5,691 | ) | - | (5,691 | ) | |||||||||||||||||||||||||
| Treasury
      stock purchases | - | - | - | (1,175,282 | ) | (28,902 | ) | - | - | - | (28,902 | ) | ||||||||||||||||||||||||
| Retirement
      of treasury stock | (1,411,356 | ) | (14 | ) | (28,729 | ) | 1,411,356 | 28,743 | - | - | - | - | ||||||||||||||||||||||||
| Issuance
      of common stock under Employee | ||||||||||||||||||||||||||||||||||||
| Stock
      Purchase Plan | 28,447 | - | 601 | - | - | - | - | - | 601 | |||||||||||||||||||||||||||
| Sale
      of common stock, including income | ||||||||||||||||||||||||||||||||||||
| tax
      benefit of stock option exercises | 936,403 | 10 | 16,619 | - | - | - | - | - | 16,629 | |||||||||||||||||||||||||||
| Deferred
      compensation related to issued restricted | ||||||||||||||||||||||||||||||||||||
| stock
      unit awards, net of forfeitures | - | - | 3,404 | - | (3,404 | ) | - | - | - | |||||||||||||||||||||||||||
| Directors'
      stock compensation | - | - | - | 13,926 | 306 | (306 | ) | - | - | - | ||||||||||||||||||||||||||
| Accrued
      stock-based compensation | - | - | 4,009 | - | - | - | - | - | 4,009 | |||||||||||||||||||||||||||
| Amortization
      of deferred stock-based | ||||||||||||||||||||||||||||||||||||
| compensation | - | - | - | - | - | 3,156 | - | - | 3,156 | |||||||||||||||||||||||||||
| Balances,
      December 31, 2005 | 57,011,740 | $ | 570 | $ | 123,278 | (250,000 | ) | $ | (5,148 | ) | $ | (5,593 | ) | $ | 510,812 | $ | (54,599 | ) | $ | 569,320 | ||||||||||||||||
| Comprehensive
      income, net of tax: | ||||||||||||||||||||||||||||||||||||
| Net
      income | - | - | - | - | - | - | 190,015 | - | 190,015 | |||||||||||||||||||||||||||
| Change
      in derivative instrument fair value | - | - | - | - | - | - | - | 87,107 | 87,107 | |||||||||||||||||||||||||||
| Reclassification
      to earnings | - | - | - | - | - | - | - | (18,129 | ) | (18,129 | ) | |||||||||||||||||||||||||
| Minimum
      pension liability adjustment | - | - | - | - | - | - | - | (180 | ) | (180 | ) | |||||||||||||||||||||||||
| Total
      comprehensive income | 258,813 | |||||||||||||||||||||||||||||||||||
| SFAS
      No. 158 transition amount | - | - | - | - | - | - | - | (1,270 | ) | (1,270 | ) | |||||||||||||||||||||||||
| Cash
      dividends, $ 0.10 per share | - | - | - | - | - | - | (5,603 | ) | - | (5,603 | ) | |||||||||||||||||||||||||
| Treasury
      stock purchases | - | - | - | (3,319,300 | ) | (123,108 | ) | - | - | - | (123,108 | ) | ||||||||||||||||||||||||
| Retirement
      of treasury stock | (3,275,689 | ) | (33 | ) | (122,598 | ) | 3,275,689 | 122,631 | - | - | - | - | ||||||||||||||||||||||||
| Issuance
      of common stock under Employee | ||||||||||||||||||||||||||||||||||||
| Stock
      Purchase Plan | 26,046 | - | 814 | - | - | - | - | - | 814 | |||||||||||||||||||||||||||
| Sale
      of common stock, including income | ||||||||||||||||||||||||||||||||||||
| tax
      benefit of stock option exercises | 1,489,636 | 16 | 32,970 | - | - | - | - | - | 32,986 | |||||||||||||||||||||||||||
| Adoption
      of Statement of Financial Accounting | ||||||||||||||||||||||||||||||||||||
| Standards
      No. 123(R) | - | - | (5,593 | ) | - | - | 5,593 | - | - | - | ||||||||||||||||||||||||||
| Stock-based
      compensation expense | - | - | 10,069 | 43,611 | 1,353 | - | - | - | 11,422 | |||||||||||||||||||||||||||
| Balances,
      December 31, 2006 | 55,251,733 | $ | 553 | $ | 38,940 | (250,000 | ) | $ | (4,272 | ) | $ | - | $ | 695,224 | $ | 12,929 | $ | 743,374 | ||||||||||||||||||
| Comprehensive
      income, net of tax: | ||||||||||||||||||||||||||||||||||||
| Net
      income | - | - | - | - | - | - | 189,712 | - | 189,712 | |||||||||||||||||||||||||||
| Change
      in derivative instrument fair value | - | - | - | - | - | - | - | (154,497 | ) | (154,497 | ) | |||||||||||||||||||||||||
| Reclassification
      to earnings | - | - | - | - | - | - | - | (15,470 | ) | (15,470 | ) | |||||||||||||||||||||||||
| Pension
      liability adjustment | - | - | - | - | - | - | - | 70 | 70 | |||||||||||||||||||||||||||
| Total
      comprehensive income | 19,815 | |||||||||||||||||||||||||||||||||||
| Cash
      dividends, $ 0.10 per share | - | - | - | - | - | - | (6,284 | ) | - | (6,284 | ) | |||||||||||||||||||||||||
| Treasury
      stock purchases | - | - | - | (792,216 | ) | (25,957 | ) | - | - | - | (25,957 | ) | ||||||||||||||||||||||||
| Issuance
      of common stock under Employee | - | |||||||||||||||||||||||||||||||||||
| Stock
      Purchase Plan | 29,534 | - | 919 | - | - | - | - | - | 919 | |||||||||||||||||||||||||||
| Conversion
      of 5.75% Senior Convertible Notes | ||||||||||||||||||||||||||||||||||||
|  
      due 2022 to common stock, including income | ||||||||||||||||||||||||||||||||||||
| tax
      benefit of conversion | 7,692,295 | 77 | 106,854 | - | - | - | - | - | 106,931 | |||||||||||||||||||||||||||
| Issuance
      of common stock upon settlement of | ||||||||||||||||||||||||||||||||||||
|   
      RSUs following expiration of restriction period, | ||||||||||||||||||||||||||||||||||||
| net
      of shares used for tax withholdings | 302,370 | 3 | (4,569 | ) | - | - | - | - | - | (4,566 | ) | |||||||||||||||||||||||||
| Sale
      of common stock, including income | ||||||||||||||||||||||||||||||||||||
| tax
      benefit of stock option exercises | 733,650 | 7 | 19,011 | - | - | - | - | - | 19,018 | |||||||||||||||||||||||||||
| Stock-based
      compensation expense | 1,250 | - | 8,915 | 32,504 | 1,180 | - | - | - | 10,095 | |||||||||||||||||||||||||||
| Balances,
      December 31, 2007 | 64,010,832 | $ | 640 | $ | 170,070 | (1,009,712 | ) | $ | (29,049 | ) | $ | - | $ | 878,652 | $ | (156,968 | ) | $ | 863,345 | |||||||||||||||||
| ST.
      MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES | ||||||||||||
| CONSOLIDATED
      STATEMENTS OF CASH FLOWS | ||||||||||||
| (In
      thousands) | ||||||||||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| Reconciliation
      of net income to net cash provided | ||||||||||||
| by
      operating activities: | ||||||||||||
| Net
      income | $ | 189,712 | $ | 190,015 | $ | 151,936 | ||||||
| Adjustments
      to reconcile net income to net cash | ||||||||||||
| provided
      by operating activities: | ||||||||||||
| Gain
      on insurance settlement | (5,243 | ) | - | - | ||||||||
| (Gain)
      loss on sale of proved properties | 367 | (6,910 | ) | (222 | ) | |||||||
| Depletion,
      depreciation, amortization, | ||||||||||||
| and
      asset retirement obligation liability accretion | 227,596 | 154,522 | 132,758 | |||||||||
| Exploratory
      dry hole expense | 14,365 | 10,191 | 8,104 | |||||||||
| Impairment
      of proved properties | - | 7,232 | - | |||||||||
| Abandonment
      and impairment of unproved properties | 4,756 | 4,301 | 5,780 | |||||||||
| Unrealized
      derivative loss | 5,458 | 7,094 | 1,615 | |||||||||
| Change
      in Net Profits Plan liability | 50,823 | 23,759 | 106,263 | |||||||||
| Stock-based
      compensation expense* | 10,095 | 11,422 | 7,165 | |||||||||
| Deferred
      income taxes | 92,955 | 74,832 | 5,547 | |||||||||
| Other | (10,497 | ) | (2,479 | ) | 281 | |||||||
| Changes
      in current assets and liabilities: | ||||||||||||
| Accounts
      receivable | (6,557 | ) | 22,476 | (57,113 | ) | |||||||
| Refundable
      income taxes | 6,751 | - | - | |||||||||
| Prepaid
      expenses and other | 19,375 | (17,886 | ) | (1,210 | ) | |||||||
| Accounts
      payable and accrued expenses | 40,769 | 5,215 | 42,438 | |||||||||
| Income
      tax benefit from the exercise of stock options** | (9,933 | ) | (16,084 | ) | 6,037 | |||||||
| Net
      cash provided by operating activities | 630,792 | 467,700 | 409,379 | |||||||||
| Cash
      flows from investing activities: | ||||||||||||
| Proceeds
      from insurance settlement | 5,948 | - | - | |||||||||
| Proceeds
      from sale of oil and gas properties | 495 | 860 | 1,213 | |||||||||
| Capital
      expenditures | (637,748 | ) | (455,056 | ) | (270,881 | ) | ||||||
| Acquisition
      of oil and gas properties | (182,883 | ) | (270,639 | ) | (73,905 | ) | ||||||
| Deposits
      to short-term investments  | (1,168 | ) | - | (1,502 | ) | |||||||
| Receipts
      from short-term investments | 1,450 | 25 | 1,427 | |||||||||
| Other | 10,034 | 91 | 3,869 | |||||||||
| Net
      cash used in investing activities | (803,872 | ) | (724,719 | ) | (339,779 | ) | ||||||
| Cash
      flows from financing activities: | ||||||||||||
| Proceeds
      from credit facility | 822,000 | 935,137 | 284,090 | |||||||||
| Repayment
      of credit facility | (871,000 | ) | (601,137 | ) | (321,090 | ) | ||||||
| Repayment
      of short-term note payable | (4,469 | ) | - | - | ||||||||
| Proceeds
      from short-term note payable | - | 4,469 | - | |||||||||
| Income
      tax benefit from the exercise of stock options** | 9,933 | 16,084 | - | |||||||||
| Proceeds
      from issuance of senior convertible debt, net of | 280,657 | - | - | |||||||||
| deferred
      financing costs | ||||||||||||
| Proceeds
      from sale of common stock | 10,007 | 17,716 | 11,193 | |||||||||
| Repurchase
      of common stock | (25,904 | ) | (123,108 | ) | (28,902 | ) | ||||||
| Dividends
      paid | (6,284 | ) | (5,603 | ) | (5,691 | ) | ||||||
| Other | 186 | - | (693 | ) | ||||||||
| Net
      cash provided by (used in) financing activities | 215,126 | 243,558 | (61,093 | ) | ||||||||
| Net
      change in cash and cash equivalents | 42,046 | (13,461 | ) | 8,507 | ||||||||
| Cash
      and cash equivalents at beginning of period | 1,464 | 14,925 | 6,418 | |||||||||
| Cash
      and cash equivalents at end of period | $ | 43,510 | $ | 1,464 | $ | 14,925 | ||||||
| * 
      Stock-based compensation expense is a component of Exploration expense and
      General and administrative expense on the  | ||||||||||||
| Consolidated Statements of Operations. During 2007, 2006, and 2005, respectively, approximately $3.2 million, $3.1 million, and | ||||||||||||
| $3.3
      million, of stock-based compensation expense was included in Exploration
      expense. During 2007, 2006, and 2005, repectively,  | ||||||||||||
| approximately
      $6.9 million, $8.3 million, and $3.9 million of stock-based compensation
      expense was included in General and administrative | ||||||||||||
| expense. | ||||||||||||
| ** SFAS 123(R) requires presentation of the income tax benefit from the exercise of stock options to be presented in financing | ||||||||||||
| activities subsequent to adoption. The prior period classification is to remain unchanged under SFAS 123(R). | ||||||||||||
| ST.
      MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES | ||||||||||||
| CONSOLIDATED
      STATEMENTS OF CASH FLOWS (Continued) | ||||||||||||
| Supplemental
      schedule of additional cash flow information and noncash investing and
      financing activities: | ||||||||||||
| For
      the Years Ended December 31, | ||||||||||||
|  | 2007 | 2006 | 2005 | |||||||||
| (in
      thousands) | ||||||||||||
| Cash
      paid for interest, net of capitalized interest | $ | 22,816 | $ | 9,826 | $ | 8,458 | ||||||
| Cash
      paid (refunded) for income taxes | $ | (1,156 | ) | $ | 25,505 | $ | 65,752 | |||||
|  | ||||||||||||
| As
      of December 31, 2007, 2006, and 2005, $116.9 million, $73.5 million,
      and $51.0 million, respectively, are included as | ||||||||||||
| additions
      to oil and gas properties and as increases to accounts payable and accrued
      expenses. These oil and gas | ||||||||||||
| property
      additions are reflected in cash used in investing activities in the
      periods that the payables are settled. | ||||||||||||
| In
      May 2007 and 2006, July 2007 and 2006, and May 2005, the
      Company issued 26,292, 26,076, 6,212, 3,751 and 13,926 | ||||||||||||
| shares,
      respectively, of common stock from treasury to its non-employee directors
      pursuant to the Company's | ||||||||||||
| non-employee
      director stock compensation plan. The Company recorded compensation
      expense related to the | ||||||||||||
| issuances
      of shares to non-employee directors of $983,500, $976,000 and $178,000 for
      the years ended December 31, 2007, | ||||||||||||
| 2006
      and 2005, respectively. | ||||||||||||
| In
      March 2007 the Company called the 5.75% Senior Convertible Notes for
      redemption.  The note holders elected | ||||||||||||
| to
      convert the 5.75% Senior Convertible Notes to common stock.  As a
      result, the Company issued 7,692,295 shares | ||||||||||||
| of
      common stock on March 16, 2007, in exchange for the $100 million of 5.75%
      Senior Convertible Notes.  The conversion | ||||||||||||
| was
      executed in accordance with the conversion provisions of the original
      indenture. Additionally, the conversion resulted | ||||||||||||
| in
      a $7.0 million decrease in non-current deferred income taxes and a
      corresponding increase in additional paid-in | ||||||||||||
| capital
      that is a result of the recognition of the cumulative excess tax benefit
      earned by the Company associated with the | ||||||||||||
| contingent
      interest feature of this note. | ||||||||||||
| In
      June 2006 the Company hired a new senior executive. In doing so, the
      Company issued 13,784 shares of stock and | ||||||||||||
| recorded
      compensation expense of approximately $728,000. Additionally, in
      March 2007 the Company issued 1,250 shares | ||||||||||||
| of
      stock to the senior executive as the Company reached certain performance
      levels. The Company has recognized | ||||||||||||
| approximately
      $136,000 of expense related to this issuance as of December 31,
      2007. | ||||||||||||
| In
      February 2007, February 2006, and March 2005, the Company issued 78,657,
      484,351, and 195,312 restricted stock | ||||||||||||
| units,
      respectively, pursuant to the Company's restricted stock plan. The
      total value of the issuances were | ||||||||||||
| $2.5
      million, $16.4 million, and $4.5 million, respectively. | ||||||||||||
| In
      May 2006 the Company closed a transaction whereby it exchanged non-core
      oil and gas properties for oil and gas | ||||||||||||
| properties
      located in Richland County, Montana. This transaction is considered a
      non-monetary exchange for accounting | ||||||||||||
| purposes
      with a fair value assigned to this transaction of $11.5
      million. | ||||||||||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| Dilutive | 1,441,556 | 1,978,577 | 2,293,768 | |||||||||
| Anti-dilutive | - | - | - | |||||||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands, except per share amounts) | ||||||||||||
| Net
      income | $ | 189,712 | $ | 190,015 | $ | 151,936 | ||||||
| Adjustments
      to net income for dilution: | ||||||||||||
| Add:
      Interest expense not incurred if 5.75% Senior Convertible Notes
      converted | 1,285 | 6,337 | 6,337 | |||||||||
| Less:
      Other adjustments | (13 | ) | (63 | ) | (64 | ) | ||||||
| Less:
      Income tax effect of adjustment items | (469 | ) | (2,237 | ) | (2,275 | ) | ||||||
| Net
      income adjusted for the effect of dilution | $ | 190,515 | $ | 194,052 | $ | 155,934 | ||||||
| Basic
      weighted-average common shares outstanding | 61,852 | 56,291 | 56,907 | |||||||||
| Add:
      Dilutive effect of stock options and unvested restricted stock
      units | 1,441 | 1,979 | 2,295 | |||||||||
| Add:
      Dilutive effect of 5.75% Senior Convertible Notes using the
      if-converted method | 1,557 | 7,692 | 7,692 | |||||||||
| Diluted
      weighted-average common shares outstanding | 64,850 | 65,962 | 66,894 | |||||||||
| Basic
      earnings per common share: | $ | 3.07 | $ | 3.38 | $ | 2.67 | ||||||
| Diluted
      earnings per common share: | $ | 2.94 | $ | 2.94 | $ | 2.33 | ||||||
| For the Year Ended December 31,
      2005 | ||||
| (In
      thousands, except per share amounts) | ||||
| Net
      income |  | |||
| As
      reported: | $ | 151,936 | ||
| Add:  stock-based
      employee compensation expense included in reported net income, net of
      related tax effects | 4,453 | |||
| Less:  stock-based
      employee compensation expense determined under fair value method for all
      awards, net of related income tax effects | (6,282 | ) | ||
| Pro
      forma | $ | 150,107 | ||
| Pro
      forma basic earnings per share | $ | 2.64 | ||
| Pro
      forma diluted earnings per share | $ | 2.30 | ||
| Pension | Other | |||||||||||
| Derivative | Liability | Comprehensive | ||||||||||
| Instruments | Adjustment | Income
      (Loss) | ||||||||||
| (In
      thousands) | ||||||||||||
| For the period ending December 31, 2005 |  |  | ||||||||||
|  Before
      tax income (loss) | $ |  (92,097 | ) | $ |  455 | $ |  (91,642 | ) | ||||
|  Tax
      benefit (expense) | 34,941 |  (172 | ) |  34,769 | ||||||||
|  After
      deferred tax income (loss) | $ |  (57,156 | ) | $ | 283 | $ |  (56,873 | ) | ||||
| For
      the period ending December 31, 2006 | ||||||||||||
| Before
      tax income (loss) | $ | 111,437 | $ | (290 | ) | $ | 111,147 | |||||
| Tax benefit
      (expense) | (42,459 | ) | 110 | (42,349 | ) | |||||||
| After
      deferred tax income (loss) | $ | 68,978 | $ | (180 | ) | $ | 68,798 | |||||
| For
      the period ending December 31, 2007 | ||||||||||||
| Before
      tax income (loss) | $ | (272,655 | ) | $ | 119 |  | $ | (272,536 | ) | |||
| Tax
      benefit (expense) | 102,688 | (49 | ) | 102,639 | ||||||||
| After
      deferred tax income (loss) | $ | (169,967 | ) | $ | 70 |  | $ | (169,897 | ) | |||
| As
      of December 31, | ||||||||
| 2007 | 2006 | |||||||
| (In
      thousands) | ||||||||
| Accrued
      oil and gas sales | $ | 115,534 | $ | 95,036 | ||||
| Due
      from joint interest owners | 37,860 | 33,309 | ||||||
| Other | 5,755 | 14,376 | ||||||
| Total
      accounts receivable | $ | 159,149 | $ | 142,721 | ||||
| As
      of December 31, | ||||||||
|  | 2007 | 2006 | ||||||
| (In
      thousands) | ||||||||
| Accrued
      drilling costs | $ | 112,481 | $ | 68,326 | ||||
| Revenue
      payable | 37,048 | 27,591 | ||||||
| Accrued
      lease operating expense | 14,604 | 11,153 | ||||||
| Accrued
      taxes | 5,042 | 2,358 | ||||||
| Accrued
      interest | 3,590 | 2,846 | ||||||
| Accrued
      compensation | 17,887 | 10,323 | ||||||
| Trade
      payables | 28,187 | 37,152 | ||||||
| Accrued
      payments to hedge contract counterparties | 9,640 | 665 | ||||||
| Plug
      and abandonment liability on offshore platform related to Hurricane
      Rita | 3,108 | - | ||||||
| Accrued
      marketed gas system expense | 13,520 | 6,396 | ||||||
| Other | 9,811 | 5,024 | ||||||
| Total
      account payable and accrued expenses | $ | 254,918 | $ | 171,834 | ||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| Current
      taxes: | ||||||||||||
| Federal | $ | 15,136 | $ | 28,557 | $ | 75,848 | ||||||
| State | 2,459 | 1,917 | 4,906 | |||||||||
| Deferred
      taxes | 92,955 | 74,832 | 5,547 | |||||||||
| Total
      income tax expense | $ | 110,550 | $ | 105,306 | $ | 86,301 | ||||||
| December
      31, | ||||||||
| 2007 | 2006 | |||||||
| (In
      thousands) | ||||||||
| Deferred
      tax liabilities: | ||||||||
| Oil
      and gas properties | $ | 412,669 | $ | 299,082 | ||||
| Unrealized
      derivative asset | - | 17,184 | ||||||
| Interest
      on Senior Convertible Notes | 2,596 | 6,925 | ||||||
| Other | 1,429 | 59 | ||||||
| Total
      deferred tax liabilities | 416,694 | 323,250 | ||||||
| Deferred
      tax assets: | ||||||||
| Net
      Profits Plan liability | 79,552 | 59,537 | ||||||
| Unrealized
      derivative liability | 93,829 | 8,174 | ||||||
| Stock
      compensation | 8,849 | 8,104 | ||||||
| State
      tax net operating loss carryforward or carryback | 6,808 | 4,589 | ||||||
| State
      and federal income tax benefit | 2,939 | 2,285 | ||||||
| Other
      long-term liabilities | 1,724 | 2,026 | ||||||
| Employee
      benefits and other | 1,543 | 1,391 | ||||||
| Deferred
      capital loss | - | 619 | ||||||
| Other | 614 | - | ||||||
| Total
      deferred tax assets | 195,858 | 86,725 | ||||||
| Valuation
      allowance | (3,556 | ) | (2,660 | ) | ||||
| Net
      deferred tax assets | 192,302 | 84,065 | ||||||
| Total
      net deferred tax liabilities | 224,392 | 239,185 | ||||||
| Less:
      current deferred income tax liabilities | (1,425 | ) | (17,188 | ) | ||||
| Add:
      current deferred income tax assets | 34,636 | 2,521 | ||||||
| Non-current
      net deferred tax liabilities | $ | 257,603 | $ | 224,518 | ||||
| Current
      federal income tax refundable | $ | 933 | $ | 7,293 | ||||
| Current
      state income tax refundable (payable) | $ | (105 | ) | $ | 391 | |||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| Federal
      statutory taxes | $ | 105,092 | $ | 103,504 | $ | 83,307 | ||||||
| Increase
      (reduction) in taxes resulting from: | ||||||||||||
| State
      taxes (net of federal benefit) | 5,111 | 2,081 | 4,185 | |||||||||
| Statutory
      depletion | (407 | ) | (315 | ) | (224 | ) | ||||||
| Domestic
      production activities deduction | (384 | ) | (287 | ) | (1,717 | ) | ||||||
| Other | 242 | 235 | (108 | ) | ||||||||
| Change
      in valuation allowance | 896 | 88 | 858 | |||||||||
| Income
      tax expense from operations | $ | 110,550 | $ | 105,306 | $ | 86,301 | ||||||
| Balance
      at January 1, 2007 | $ | 1,112 | ||
| Additions
      for tax positions of prior years | 233 | |||
| Reductions
      for lapse of statute of limitations | (388 | ) | ||
| Balance
      at December 31, 2007 | $ | 957 | 
| Borrowing
      base | ||||||||||||||||
| utilization
      percentage | <50% | >50%<75% | >75%<90% | >90% | ||||||||||||
| Euro-dollar
      loans | 1.000% | 1.250% | 1.500% | 1.750% | ||||||||||||
| ABR
      loans | 0.000% | 0.000% | 0.250% | 0.500% | ||||||||||||
| Commitment
      fee rate | 0.250% | 0.300% | 0.375% | 0.375% | ||||||||||||
| Years
      Ending December 31, | (In
      thousands) | |
| 2008 | $ | 29,119 | 
| 2009 | 5,882 | |
| 2010 | 3,747 | |
| 2011 | 3,352 | |
| 2012 | 1,335 | |
| Thereafter | 814 | |
| Total | $ | 44,249 | 
| As
      of December 31, | ||||||||
| 2007 | 2006 | |||||||
| (In
      thousands) | ||||||||
| Liability
      balance for Net Profits Plan as of the beginning of the
    period | $ | 160,583 | $ | 136,824 | ||||
| Increase
      in liability | 82,734 | 49,900 | ||||||
| Reduction
      in liability for cash payments made or accrued and recognized as
      compensation expense | (31,911 | ) | (26,141 | ) | ||||
| Liability
      balance for Net Profits Plan as of the end of the
      period | $ | 211,406 | $ | 160,583 | ||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| General
      and administrative expense | $ | 41,803 | $ | 10,342 | $ | 51,419 | ||||||
| Exploration
      expense | 9,020 | 13,417 | 54,844 | |||||||||
| Total | $ | 50,823 | $ | 23,759 | $ | 106,263 | ||||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| Risk
      free interest rate | 4.1% | 5.1% | 2.5% | |||||||||
| Dividend
      yield | 0.3% | 0.3% | 0.4% | |||||||||
| Volatility
      factor of the expected market | ||||||||||||
| price
      of the Company's common stock | 27.19% | 36.7% | 36.3% | |||||||||
| Expected
      life (in years) | 0.5 | 0.5 | 0.5 | |||||||||
| For
      the Years Ended | ||||||||||||
| December
      31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| Risk
      free interest rate | 4.5% | 4.7% | 4.0% | |||||||||
| Dividend
      yield | 0.3% | 0.3% | 0.4% | |||||||||
| Volatility
      factor of the expected market | ||||||||||||
| price
      of the Company's common stock | 32.0% | 36.6% | 26.7% | |||||||||
| Expected
      life of the awards (in years) | 3 |  | 3 | 3 | ||||||||
| Shares | Weighted- Average Grant-Date Fair
      Value | |||||||
| Non-vested,
      at December 31, 2006 | 506,161 | $ | 28.92 | |||||
| Granted | 102,634 | $ | 32.45 | |||||
| Vested | (268,123 | ) | $ | 25.94 | ||||
| Forfeited | (51,287 | ) | $ | 31.77 | ||||
| Non-vested,
      at December 31, 2007 | 289,385 | $ | 32.26 | |||||
| Weighted- | Aggregate | ||||||||
| Average | Intrinsic | ||||||||
| Shares | Exercise
      Price | Value | |||||||
| For
      the period ended December 31, 2005 | |||||||||
| Outstanding,
      start of year | 5,651,350 | $ | 12.06 | ||||||
| Granted | - | - | |||||||
| Exercised | (936,403 | ) | 11.31 | ||||||
| Forfeited | (16,704 | ) | 13.24 | ||||||
| Outstanding,
      end of year | 4,698,243 | $ | 12.21 | $ | 115,595,735 | ||||
| Vested
      or expected to vest, end | |||||||||
| of
      year | 4,698,243 | $ | 12.21 | $ | 115,595,735 | ||||
| Exercisable,
      end of year | 4,121,424 | $ | 12.07 | $ | 101,972,732 | ||||
| For
      the period ended December 31, 2006 | |||||||||
| Outstanding,
      start of year | 4,698,243 | $ | 12.21 | ||||||
| Granted | - | - | |||||||
| Exercised | (1,489,636 | ) | 11.35 | ||||||
| Forfeited | (87,005 | ) | 14.33 | ||||||
| Outstanding,
      end of year | 3,121,602 | $ | 12.56 | $ | 75,800,322 | ||||
| Vested
      or expected to vest, end | |||||||||
| of
      year | 3,121,602 | $ | 12.56 | $ | 75,800,322 | ||||
| Exercisable,
      end of year | 2,966,944 | $ | 12.56 | $ | 72,049,258 | ||||
| For
      the period ended December 31, 2007 | |||||||||
| Outstanding,
      start of year | 3,121,602 | $ | 12.56 | ||||||
| Granted | - | - | |||||||
| Exercised | (733,650 | ) | 12.38 | ||||||
| Forfeited | (2,452 | ) | 7.34 | ||||||
| Outstanding,
      end of year | 2,385,500 | $ | 12.62 | $ | 62,007,749 | ||||
| Vested
      or expected to vest, end | |||||||||
| of
      year | 2,385,500 | $ | 12.62 | $ | 62,007,749 | ||||
| Exercisable,
      end of year | 2,378,000 | $ | 12.62 | $ | 61,814,737 | ||||
| Options
      Outstanding | Options
      Exercisable | |||||||||||||||||||||||||||
| Weighted- | Weighted | |||||||||||||||||||||||||||
| Average | Weighted- | Average | Weighted- | |||||||||||||||||||||||||
| Remaining | Average | Remaining | Average | |||||||||||||||||||||||||
| Range
      of | Number | Contractual | Exercise | Number | Contractual | Exercise | ||||||||||||||||||||||
| Exercise
      Prices | Outstanding | Life | Price | Exercisable | Life | Price | ||||||||||||||||||||||
| $ | 4.62 | - | $ | 10.60 | 464,747 |  2.9
      years | $ | 7.77 | 464,747 |  2.9
      years | $ | 7.77 | ||||||||||||||||
| 10.86 | - | 12.03 | 469,156 | 4.5
      years | 11.65 | 469,156 | 4.5
      years | 11.65 | ||||||||||||||||||||
| 12.08 | - | 12.53 | 388,139 | 5.1
      years | 12.50 | 388,139 | 5.1
      years | 12.50 | ||||||||||||||||||||
| 12.66 | - | 13.65 | 368,847 | 5.6
      years | 13.25 | 361,347 | 5.6
      years | 13.25 | ||||||||||||||||||||
| 14.25 | - | 14.25 | 239,129 | 6.0
      years | 14.25 | 239,129 | 6.0
      years | 14.25 | ||||||||||||||||||||
| 16.66 | - | 16.66 | 387,078 | 3.0
      years | 16.66 | 387,078 | 3.0
      years | 16.66 | ||||||||||||||||||||
| 20.87 | - | 20.87 | 68,404 | 7.0
      years | 20.87 | 68,404 | 7.0
      years | 20.87 | ||||||||||||||||||||
| Total | 2,385,500 | 2,378,000 | ||||||||||||||||||||||||||
|  | At
      December 31, 2006 | |||||||||||
| Prior
      to Adopting SFAS No. 158 | Effect
      of Adopting SFAS No. 158 | As
      Reported | ||||||||||
| (In
      thousands) | ||||||||||||
| Accrued
      pension liability | $ | 3,355 | $ | 2,619 | $ | 5,974 | ||||||
| Deferred
      income taxes | $ | (932 | ) | $ | (990 | ) | $ | (1,922 | ) | |||
| Accumulated
      other comprehensive income | $ | - | $ | 2,619 | $ | 2,619 | ||||||
| As
      of December
      31, 2007 | ||||
| (In
      thousands) | ||||
| Unrecognized
      actuarial losses | $ | 2,500 | ||
| Unrecognized
      prior service costs | - | |||
| Accumulated
      other comprehensive income | $ | 2,500 | ||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| Change
      in benefit obligations: | ||||||||||||
| Projected
      benefit obligation at beginning of year | $ | 13,763 | $ | 11,900 | $ | 10,174 | ||||||
| Service
      cost | 1,911 | 1,684 | 1,385 | |||||||||
| Interest
      cost | 793 | 652 | 535 | |||||||||
| Actuarial
      (gain) loss | 95 | 7 | (4 | ) | ||||||||
|   Benefits
      paid | (1,818 | ) | (480 | ) | (190 | ) | ||||||
| Projected
      benefit obligation at end of year | $ | 14,744 | $ | 13,763 | $ | 11,900 | ||||||
| Change
      in plan assets: | ||||||||||||
| Fair
      value of plan assets at beginning of year | $ | 7,789 | $ | 5,955 | $ | 4,675 | ||||||
| Actual
      return on plan assets | 536 | 968 | 412 | |||||||||
| Employer
      contribution | 2,248 | 1,346 | 1,058 | |||||||||
| Benefits
      paid | (1,818 | ) | (480 | ) | (190 | ) | ||||||
| Fair
      value of plan assets at end of year | $ | 8,755 | $ | 7,789 | $ | 5,955 | ||||||
| Funded
      status: | $ | (5,989 | ) | $ | (5,974 | ) | $ | (5,945 | ) | |||
| Accumulated
      Benefit Obligation | $ | 10,416 | $ | 9,922 | $ | 8,429 | ||||||
| As
      of December 31, | ||||||||
| 2007 | 2006 | |||||||
| (In
      thousands) | ||||||||
| Projected
      benefit obligation | $ | 14,744 | $ | 13,763 | ||||
| Accumulated
      benefit obligation | $ | 10,416 | $ | 9,922 | ||||
| Fair
      value of plan assets | $ | 8,755 | $ | 7,789 | ||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| Components
      of net periodic benefit cost: | ||||||||||||
| Service
      cost | $ | 1,911 | $ | 1,684 | $ | 1,385 | ||||||
| Interest
      cost | 793 | 652 | 535 | |||||||||
| Expected
      return on plan assets that reduces periodic pension cost | (540 | ) | (427 | ) | (354 | ) | ||||||
| Amortization
      of prior service cost | - | - | - | |||||||||
| Amortization
      of net actuarial loss | 218 | 296 | 241 | |||||||||
| Net
      periodic benefit cost | $ | 2,382 | $ | 2,205 | $ | 1,807 | ||||||
| As
      of December 31, | |||
| 2007 | 2006 | ||
| Projected benefit
      obligation | |||
| Discount
      rate | 6.1% | 5.9% | |
| Rate
      of compensation increase | 6.2% | 6.2% | |
| Net periodic benefit
      cost | |||
| Discount
      rate | 5.9% | 5.5% | |
| Expected
      return on plan assets | 7.5% | 7.5% | |
| Rate
      of compensation increase | 6.2% | 6.2% | |
| Target | As
      of December 31, | |||||
| Asset
      Category | 2008 | 2007 | 2006 | |||
| Equity
      securities | 60.0% | 57.5% | 64.8% | |||
| Debt
      securities | 40.0% | 42.5% | 35.2% | |||
| Other | - | - | - | |||
| Total | 100.0% | 100.0% | 100.0% | |||
| Years
      Ended December 31, | (in
      thousands) | |||
| 2008 | $ | 1,612 | ||
| 2009 | 479 | |||
| 2010 | 734 | |||
| 2011 | 1,254 | |||
| 2012 | 1,529 | |||
| 2013
      through 2017 | $ | 13,793 | ||
| As
      of December 31, | ||||||||
| 2007 | 2006 | |||||||
| (In
      thousands) | ||||||||
| Beginning
      asset retirement obligation | $ | 77,242 | $ | 66,078 | ||||
| Liabilities
      incurred | 10,851 | 7,555 | ||||||
| Liabilities
      settled | (12,276 | ) | (1,484 | ) | ||||
| Accretion
      expense | 5,458 | 4,926 | ||||||
| Revision
      to estimated cash flows | 27,009 | 167 | ||||||
| Ending
      asset retirement obligation | $ | 108,284 | $ | 77,242 | ||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| Derivative
      contract settlements included in realized oil and gas hedge gain
      (loss) | $ | 24,484 | $ | 28,176 | $ | (22,539 | ) | |||||
| Ineffective
      portion of hedges qualifying for hedge accounting included in unrealized
      derivative loss | (4,123 | ) | (8,087 | ) | (1,754 | ) | ||||||
| Non-qualified
      derivative contracts included in unrealized derivative
loss | (1,335 | ) | 993 | 139 | ||||||||
| Interest
      rate derivative contract settlements | 226 | (550 | ) | (247 | ) | |||||||
| Total
      realized gain (loss) | $ | 19,252 | $ | 20,532 | $ | (24,401 | ) | |||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| Development
      costs | $ | 591,013 | $ | 367,546 | $ | 249,518 | ||||||
| Exploration | 111,470 | 126,220 | 69,817 | |||||||||
| Acquisitions: | ||||||||||||
| Proved | 161,665 | 238,400 | 84,981 | |||||||||
| Unproved | 23,495 | 44,472 | 2,853 | |||||||||
| Leasing
      activity | 38,436 | 28,816 | 14,330 | |||||||||
| Total | $ | 926,079 | $ | 805,454 | $ | 421,499 | ||||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| Beginning
      balance at January 1, | $ | 22,799 | $ | 7,994 | $ | 189 | ||||||
| Capitalized
      exploratory well costs charged to expense upon adoption of FSP FAS
      19-1 | - | - | - | |||||||||
| Additions
      to capitalized exploratory well costs pending the determination of proved
      reserves | 29,551 | 17,693 | 7,994 | |||||||||
| Reclassifications
      to wells, facilities, and equipment based on the determination of proved
      reserves | (9,237 | ) | (2,888 | ) | (189 | ) | ||||||
| Capitalized
      exploratory well costs charged to expense | (183 | ) | - | - | ||||||||
| Ending
      balance at December 31, | $ | 42,930 | $ | 22,799 | $ | 7,994 | ||||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| Exploratory
      well costs capitalized for one year or less | $ | 29,368 | $ | 17,958 | $ | 7,994 | ||||||
| Exploratory
      well costs capitalized for more than one year | 13,562 | 4,841 | - | |||||||||
| Ending
      balance at December 31, | $ | 42,930 | $ | 22,799 | $ | 7,994 | ||||||
| Number
      of projects with exploratory well costs that have been capitalized more
      than a year | 3 | 1 | - | |||||||||
| For
      the Years Ended December 31, | ||||||||||||||||||||||||
| 2007 | 2006 | 2005 | ||||||||||||||||||||||
| Oil
      or | Oil
      or | Oil
      or | ||||||||||||||||||||||
| Condensate | Gas | Condensate | Gas | Condensate | Gas | |||||||||||||||||||
| (MBbl) | (MMcf) | (MBbl) | (MMcf) | (MBbl) | (MMcf) | |||||||||||||||||||
| Developed
      and undeveloped: | ||||||||||||||||||||||||
| Beginning
      of year | 74,195 | 482,475 | 62,903 | 417,075 | 56,574 | 319,196 | ||||||||||||||||||
| Revisions
      of previous estimate | 5,238 | 9,489 | 524 | 10,946 | 1,593 | 24,354 | ||||||||||||||||||
| Discoveries
      and extensions | 1,166 | 28,483 | 857 | 36,723 | 2,553 | 21,998 | ||||||||||||||||||
| Infill
      reserves in an existing proved field | 4,592 | 69,090 | 4,131 | 49,107 | 3,286 | 83,093 | ||||||||||||||||||
| Purchases
      of minerals in place | 567 | 91,374 | 11,857 | 28,030 | 4,831 | 20,823 | ||||||||||||||||||
| Sales
      of reserves | (4 | ) | (1,400 | ) | (20 | ) | (2,958 | ) | (7 | ) | (588 | ) | ||||||||||||
| Production | (6,907 | ) | (66,061 | ) | (6,057 | ) | (56,448 | ) | (5,927 | ) | (51,801 | ) | ||||||||||||
| End
      of year (a)
      (b) | 78,847 | 613,450 | 74,195 | 482,475 | 62,903 | 417,075 | ||||||||||||||||||
| Proved
      developed reserves: | ||||||||||||||||||||||||
| Beginning
      of year | 61,519 | 358,477 | 55,971 | 313,125 | 47,992 | 272,295 | ||||||||||||||||||
| End
      of year | 68,277 | 426,627 | 61,519 | 358,477 | 55,971 | 313,125 | ||||||||||||||||||
|  (a)  At
      December 31, 2007, 2006, and 2005 amounts include approximately 316, 523,
      and 435 MMcf, repectively, representing the Company's net underproduced
      gas balancing position. | ||||||||||||||||||||||||
|  (b) 
      Subsequent to the year ended December 31, 2007, the Company divested of
      certain non-core properties, which included 40.4 BCFE of
      reserves that were owned by the Company as         
      of December 31, 2007. | ||||||||||||||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| Gas
      (per Mcf) | $ | 7.56 | $ | 5.54 | $ | 8.34 | ||||||
| Oil
      (per Bbl) | $ | 88.71 | $ | 53.65 | $ | 55.63 | ||||||
| As
      of December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| Future
      cash inflows | $ | 11,629,679 | $ | 6,653,455 | $ | 6,979,279 | ||||||
| Future
      production costs | (3,672,857 | ) | (2,283,452 | ) | (2,146,590 | ) | ||||||
| Future
      development costs | (611,288 | ) | (429,303 | ) | (385,379 | ) | ||||||
| Future
      income taxes | (2,316,637 | ) | (1,125,955 | ) | (1,448,444 | ) | ||||||
| Future
      net cash flows | 5,028,897 | 2,814,745 | 2,998,866 | |||||||||
| 10
      percent annual discount | (2,321,983 | ) | (1,238,308 | ) | (1,286,568 | ) | ||||||
| Standardized
      measure of discounted future
      net cash flows | $ | 2,706,914 | $ | 1,576,437 | $ | 1,712,298 | ||||||
| For
      the Years Ended December 31, | ||||||||||||
| 2007 | 2006 | 2005 | ||||||||||
| (In
      thousands) | ||||||||||||
| Standard
      measure, beginning of year | $ | 1,576,436 | $ | 1,712,298 | $ | 1,033,938 | ||||||
| Sales
      of oil and gas produced, net of production costs | (693,885 | ) | (554,147 | ) | (590,671 | ) | ||||||
| Net
      changes in prices and production costs | 1,320,994 | (661,074 | ) | 725,154 | ||||||||
| Extensions,
      discoveries and other including infill reserves in an existing proved
      field, net of production costs | 462,952 | 280,822 | 422,481 | |||||||||
| Purchase
      of minerals in place | 265,285 | 263,762 | 132,185 | |||||||||
| Development
      costs incurred during the year | 123,630 | 67,864 | 55,324 | |||||||||
| Changes
      in estimated future development costs | (32,566 | ) | 114,007 | (42,710 | ) | |||||||
| Revisions
      of previous quantity estimates | 166,428 | 34,940 | 117,763 | |||||||||
| Accretion
      of discount | 215,745 | 249,417 | 150,112 | |||||||||
| Sales
      of reserves in place | (1,915 | ) | (8,991 | ) | (1,000 | ) | ||||||
| Net
      change in income taxes | (573,259 | ) | 200,858 | (314,685 | ) | |||||||
| Changes
      in timing and other | (122,931 | ) | (123,319 | ) | 24,407 | |||||||
| Standardized
      measure, end of year | $ | 2,706,914 | $ | 1,576,437 | $ | 1,712,298 | ||||||
| First | Second | Third | Fourth | |||||||||
| Quarter | Quarter | Quarter | Quarter | |||||||||
| Year Ended December
      31, 2007 | ||||||||||||
| Total
      operating revenues | $ | 221,006 | $ | 247,154 | $ | 246,687 | $ | 275,247 | ||||
| Total
      operating expenses (1) | 151,494 | 149,171 | 151,336 | 218,682 | ||||||||
| Income
      from operations | $ | 69,512 | $ | 97,983 | $ | 95,351 | $ | 56,565 | ||||
| Income
      before income taxes | $ | 63,562 | $ | 94,387 | $ | 91,624 | $ | 50,689 | ||||
| Net
      income | $ | 39,950 | $ | 59,235 | $ | 57,653 | $ | 32,874 | ||||
| Basic
      net income per common share | $ | 0.70 | $ | 0.93 | $ | 0.91 | $ | 0.52 | ||||
| Diluted
      net income per common share | $ | 0.63 | $ | 0.91 | $ | 0.89 | $ | 0.51 | ||||
| Dividends
      declared per common share | $ | 0.05 | $ | - | $ | 0.05 | $ | - | ||||
| Year Ended December
      31, 2006 | ||||||||||||
| Total
      operating revenues | $ | 193,588 | $ | 193,381 | $ | 198,040 | $ | 202,692 | ||||
| Total
      operating expenses | 112,902 | 128,296 | 110,818 | 133,419 | ||||||||
| Income
      from operations | $ | 80,686 | $ | 65,085 | $ | 87,222 | $ | 69,273 | ||||
| Income
      before income taxes | $ | 80,131 | $ | 64,076 | $ | 85,142 | $ | 65,972 | ||||
| Net
      income | $ | 50,526 | $ | 40,080 | $ | 55,877 | $ | 43,532 | ||||
| Basic
      net income per common share | $ | 0.88 | $ | 0.70 | $ | 1.01 | $ | 0.78 | ||||
| Diluted
      net income per common share | $ | 0.76 | $ | 0.61 | $ | 0.88 | $ | 0.69 | ||||
| Dividends
      declared per common share | $ | 0.05 | $ | - | $ | 0.05 | $ | - | ||||
|  | First | Second | Third | Fourth | ||||||||
| Quarter | Quarter | Quarter | Quarter | |||||||||
| (In
      thousands) | ||||||||||||
| General
      and administrative: | ||||||||||||
| As
      previously reported | $ | 11,141 | $ | 13,697 | $ | 13,110 | $ | 15,187 | ||||
| Net
      Profits Plan Adjustment | 1,750 | 2,569 | 2,695 | - | ||||||||
| Adjusted
      general and administrative | $ | 12,891 | $ | 16,266 | $ | 15,805 | $ | 15,187 | ||||
| Exploration: | ||||||||||||
| As
      previously reported | $ | 20,769 | $ | 13,643 | $ | 15,257 | $ | 16,030 | ||||
| Net
      Profits Plan Adjustment | (1,749 | ) | (2,569 | ) | (2,695 | ) | - | |||||
| Adjusted
      exploration | $ | 19,020 | $ | 11,074 | $ | 12,562 | $ | 16,030 | ||||
| Date:  March
      4, 2008 | By: | /s/ ANTHONY J.
      BEST | 
| Anthony
      J. Best | ||
| President,
      Chief Executive Officer, | ||
| and
      Director | 
| Signature | Title | Date | 
| /s/ ANTHONY J.
      BEST | President,
      Chief Executive Officer, | March
      4, 2008 | 
| Anthony
      J. Best | and
      Director | |
| *                         | Senior
      Vice President-Chief Financial | March
      4, 2008 | 
| David
      W. Honeyfield | Officer
      and Secretary | |
| *                         | Controller | March
      4, 2008 | 
| Mark
      T. Solomon | ||
| *                         | Chairman of the Board of Directors | March
      4, 2008 | 
| Mark A. Hellerstein | ||
| *                         | Director | March
      4, 2008 | 
| Barbara M. Baumann | ||
| *                         | Director | March
      4, 2008 | 
| Larry W. Bickle | 
| Signature | Title | Date | 
| *                         | Director | March
      4, 2008 | 
| William
      J. Gardiner | ||
| *                         | Director | March
      4, 2008 | 
| Julio
      M. Quintana | ||
| *                         | Director | March
      4, 2008 | 
| John
      M. Seidl | ||
| *                         | Director | March
      4, 2008 | 
| William
      D. Sullivan | ||
| * By: /s/ ANTHONY J. BEST | March 4, 2008 | |
| Anthony J. Best | ||
| (as attorney-in-fact for each of the persons indicated) | ||