Exhibit 99.1 ATP Achieves Record Quarterly Net Income and Revenue HOUSTON--(BUSINESS WIRE)--May 10, 2007--ATP Oil & Gas Corporation (NASDAQ: ATPG) today announced first quarter 2007 results and provided an operations update. -- Achieved quarterly record net income of $0.92 per basic share; -- Achieved quarterly record revenue of $146.3 million; -- Expanded the Canyon Express Hub; -- Expanded the Gomez Hub; -- Expanded the Tors Hub; -- Lowered cost of capital by refinancing Libor + 4.75% second lien debt with first lien debt at Libor + 3.5% and improved financial strength by adding $191.5 million in liquidity. Results of Operations Natural gas and oil production increased 168% from 5.9 Bcfe (66 MMcfe/d) for the first quarter 2006 to 15.9 Bcfe (177 MMcfe/d). Natural gas, oil and condensate price realizations per Mcfe increased 19% from $7.62 for the first quarter 2006 to $9.11. The increase in price realizations primarily reflects improved cash flow hedges. Revenues from production increased 220% from $45.2 million for the first quarter 2006 to $144.7 million. The increase in revenue was principally due to the aforementioned increases in production and price realizations. Lease operating expenses (LOE) per Mcfe was $1.33, compared to $1.80 per Mcfe in the first quarter 2006. The decrease per Mcfe was primarily attributable to higher production levels during 2007 and the additional first quarter 2006 costs related to the 2005 hurricanes. General and administrative (G&A) expense increased $0.8 million to $8.8 million from the first quarter 2006. Included in G&A expense is $1.6 million in the first quarter 2007 and $2.2 million in the first quarter 2006 of non-cash stock based compensation. The G&A increase was primarily due to increased employee compensation and higher legal, professional and accounting fees. Depreciation, depletion, and amortization (DD&A) per Mcfe was $3.36 for the first quarter, compared to $2.91 for the first quarter 2006. ATP recorded net income available to common shareholders in the first quarter of $27.4 million or $0.92 per basic share and $0.89 per diluted share, compared to a net loss available to common shareholders of $9.9 million or $0.34 per basic and diluted share in the first quarter 2006. The company's selected operating statistics and financial information included within this press release contains additional information on activities for the first quarter and the comparable 2006 period. Three Months Ended March 31, ------------------- 2007 2006 --------- -------- Selected Operating Statistics Production Natural gas (MMcf) 9,825 5,033 Gulf of Mexico 6,138 4,426 North Sea 3,687 607 Oil and condensate (MBbls) 1,012 150 Gulf of Mexico 1,005 150 North Sea 7 - Natural gas equivalents (MMcfe) 15,896 5,935 Gulf of Mexico 12,170 5,326 North Sea 3,727 608 Average Prices (includes effect of cash flow hedges) Natural gas (per Mcf) $9.15 $7.65 Gulf of Mexico 8.47 7.40 North Sea 10.29 9.48 Oil and condensate (per Bbl) 54.09 44.72 Natural gas, oil and condensate (per Mcfe) 9.11 7.62 Other Expenses, per Mcfe Lease operating expense (per Mcfe) $1.33 $1.80 Gulf of Mexico 1.27 1.85 North Sea 1.49 1.36 Depreciation, depletion and amortization (DD&A) 3.36 2.91 Gulf of Mexico 3.11 2.82 North Sea 4.18 3.67 Selected Financial Data (In Thousands, Except Per Share Data) Oil and gas revenues, including settled derivatives (1) $144,675 $45,225 Net income (loss) 27,434 (3,045) Preferred dividends - (6,818) Net income (loss) available to common shareholders 27,434 (9,863) Net income (loss) per common share - basic $0.92 $(0.34) ========= ======== Net income (loss) per common share - diluted $0.89 $(0.34) ========= ======== Average number of common shares outstanding Basic 29,969 29,435 ========= ======== Diluted 30,702 29,435 ========= ======== __________________ (1) See oil and gas revenue reconciliation on the last page of this press release. Acquisitions Gomez Hub Expansion - On January 23, 2007, ATP acquired, primarily through the granting of a limited net profits interest, a 100% working interest in Mississippi Canyon ("MC") 755 ("Anduin"), a 50% working interest in a prospect at MC 754 ("Anduin West"), and a 25% working interest in a prospect at MC 800 ("Gladden"). Canyon Express Hub Expansion - On January 8, 2007, ATP completed the acquisition of a 50% working interest in MC Block 305 ("Aconcagua"), a 16.7% working interest in MC Block 348 ("Camden Hills"), and an additional 25.8% interest in Canyon Express Pipeline Common System ("Canyon Express"). Both Aconcagua (located in 6,820' of water) and Camden Hills (located in 7,112' of water), along with the company's King's Peak field, produce through the Canyon Express pipeline, in which ATP owns a 45.1% interest following this acquisition. In addition to the proved producing reserves, ATP completed this transaction primarily to acquire the undeveloped reservoirs of Aconcagua, for further study of Camden Hills, and to expand its interest in the Canyon Express Hub. Operations and Development North Sea Tors - Production commenced from the Garrow G1 well in February 2007. The G1 well, along with the Kilmar K1 and K2 wells, comprise the three producing wells at Tors. The Kilmar K3 well, which is scheduled to be drilled this summer, will be the fourth well at Tors and should increase field production capacity to approximately 80 MMcf/d net. At this time, ATP anticipates drilling additional wells, subject to reservoir performance. Wenlock - ATP is currently drilling the horizontal leg of the Wenlock W1 well in the productive horizon. The W1 well is expected to be completed before the end of the second quarter with first production scheduled this summer. Gulf of Mexico Deepwater Gomez Hub - Immediately following the acquisition of Anduin, ATP moved a semi-submersible drilling rig on location to reenter, sidetrack and complete the MC 755 #2 ST1 well. The operation was successful and the well will be tied back to the ATP Innovator and placed on production this summer. ATP is currently drilling the second stage of the MC 711 #8 well and is targeting proved, probable, and logged hydrocarbons in the northern portion of the MC 711 block. The first stage of the well targeted an extension opportunity in an adjacent fault block on MC 667. This zone contained an insufficient amount of pay and has been deemed non-commercial. As a result, ATP expects to record exploration expense of approximately $10 million in the second quarter for the portion of the well attributable to MC 667. The development well should be completed by the second quarter and placed on production this summer. Production commenced from the MC 711 #5 well located in the northern portion of the block in March 2007. This well brought field production to approximately 115 MMcfe/d net, meeting the current processing capacity of the ATP Innovator. ATP intends to expand the capacity of the ATP Innovator to approximately 200 MMcfe/d this summer. The facility upgrade should take roughly 30 to 45 days and involves installing a second natural gas compression and processing module on the platform and redesigning the subsea architecture to accommodate additional wells, including the Anduin discovery (MC 755 #2 ST1) and the second northern well at MC 711 (MC 711 #8). Telemark Hub (MC 941/942 and Atwater Valley 63) - The hull and topsides construction of the MinDOC are progressing. The well design and planning are also underway. The MinDOC sail-out is scheduled for summer 2008 with first production late in 2008. Gulf of Mexico Shelf Ship Shoal ("SS") 351 - Two successful wells were drilled during 2007. Based on these results, the company intends to drill up to three additional wells before beginning completion operations. SS 351 will be tied back to ATP's SS 358 platform and is scheduled to commence production late in the second quarter. South Timbalier ("ST") 77 - ATP drilled the ST 77 #6 extension well. This well found proved reserves in the adjacent fault block from ATP's ST 77 #4 well and commenced production on March 15, 2007. High Island ("HI") A-589 - The jacket and topsides construction are underway with installation of the platform scheduled for July 2007. The platform rig from SS 351 will move to HI A-589 once the drilling program at SS 351 is complete. There are up to two wells planned for HI A-589 with first production expected late 2007 or early 2008. Capital Resources and Liquidity During the first quarter, ATP expanded and improved the terms of its first lien term loans. The expansion resulted in $191.5 million of incremental proceeds. The company refinanced its $175.0 million second lien term loan with first lien term loan proceeds at an annual interest savings of 1.25% or $2.2 million. The interest rate of LIBOR + 3.5% and maturity of April 14, 2010 of the first lien term loan remains unchanged. The amendment also allows for a pre-agreement for an MLP structure of up to $500 million. Cash flow from operating activities was $84.2 million during the first quarter, compared to $28.8 million in cash flow from operating activities for the same 2006 period. Cash flow from operating activities prior to changes in assets and liabilities, a non-GAAP measure frequently used by research analysts, was $96.2 million for the first quarter, compared to $19.5 million for the same 2006 period. A non-GAAP reconciliation of cash flow from operating activities prior to changes in assets and liabilities can be found near the end of this press release. At March 31, 2007, ATP had working capital of $127.4 million, compared to $77.5 million at December 31, 2006. ATP had $261.7 million in cash and cash equivalents on hand at March 31, 2007, compared to $182.6 million in cash and cash equivalents at December 31, 2006. Cash paid for acquisition and development activities for the three months ended March 31, 2007 was $169.5 million, compared to $96.1 million in the same 2006 period. ATP has been active in the derivatives market this year. Since the beginning of 2007, the company has purchased crude oil puts and entered into crude oil and natural gas fixed forward sales representing approximately 64 Bcfe of production at an average hedge price of $8.71/Mcfe. In total for 2007, 2008, and 2009, ATP has 112 Bcfe hedged at an average price of $9.22/Mcfe, representing potential future revenue of more than $1.0 billion. A complete listing of the company's hedge positions can be found near the end of this press release. 1st Quarter 2007 Conference Call ATP Oil & Gas Corporation will host a live conference call on Thursday, May 10th at 10:00 am central time. Chairman and President T. Paul Bulmahn, Senior Vice President Gerald W. Schlief, Chief Operating Officer Leland E. Tate and Chief Financial Officer Albert L. Reese, Jr. will discuss the company's first quarter results followed by a Q&A session. Date: Thursday, May 10, 2007 Time: 11:00 am ET; 10:00 am CT; 9:00 am MT and 8:00 am PT ATP invites interested persons to listen to the live Internet webcast on the company's website, www.atpog.com, linking through the Investor Info page and the Conference Calls link. Phone participants should dial (888) 802-2266. The audio download file in MP3 format will be released within 48 hours of the call. A digital replay of the conference call will be available at (888) 203-1112, ID number 3595344, for a period of 24 hours beginning at 1:00 pm CT, and the webcast will be archived for 30 business days at www.atpog.com. About ATP Oil & Gas ATP Oil & Gas is an international offshore oil and gas development and production company with operations in the Gulf of Mexico and the North Sea. The company trades publicly as ATPG on the NASDAQ Global Select Market. For more information about ATP Oil & Gas, visit www.atpog.com. Forward-looking Statements Certain statements included in this news release are "forward-looking statements" under the Private Securities Litigation Reform Act of 1995. ATP cautions that assumptions, expectations, projections, intentions, or beliefs about future events may, and often do, vary from actual results and the differences can be material. Some of the key factors which could cause actual results to vary from those ATP expects include changes in natural gas and oil prices, the timing of planned capital expenditures, availability of acquisitions, uncertainties in estimating proved reserves and forecasting production results, operational factors affecting the commencement or maintenance of producing wells, the condition of the capital markets generally, as well as our ability to access them, and uncertainties regarding environmental regulations or litigation and other legal or regulatory developments affecting our business. More information about the risks and uncertainties relating to ATP's forward-looking statements are found in our SEC filings. CONSOLIDATED BALANCE SHEETS (In Thousands) March 31, December 31, 2007 2006 ------------- ------------- Assets Current assets: Cash and cash equivalents $261,749 $182,592 Restricted cash 27,556 27,497 Accounts receivable (net of allowances of $382 and $409) 91,231 105,030 Deferred tax asset 8,112 1,113 Derivative asset 367 1,170 Other current assets 10,012 9,931 ------------- ------------- Total current assets 399,027 327,333 ------------- ------------- Oil and gas properties: Oil and gas properties (using the successful efforts method of accounting) 1,792,150 1,539,352 Less: Accumulated depletion, impairment and amortization (497,287) (443,707) ------------- ------------- Oil and gas properties, net 1,294,863 1,095,645 ------------- ------------- Furniture and fixtures, net 1,096 1,079 Deferred tax asset 1,515 - Deferred financing costs, net 20,542 13,272 Other assets, net 9,571 9,729 ------------- ------------- 32,724 24,080 ------------- ------------- Total assets $1,726,614 $1,447,058 ============= ============= Liabilities and Shareholders' Equity Current liabilities: Accounts payable and accruals $220,252 $195,846 Current maturities of long-term debt 12,737 8,987 Current maturities of long-term capital lease - 23,699 Asset retirement obligation 20,142 21,297 Other current liabilities 18,465 - ------------- ------------- Total current liabilities 271,596 249,829 Long-term debt 1,255,520 1,062,454 Asset retirement obligation 100,738 87,092 Deferred tax liability 27,511 11,765 Other long-term liabilities and deferred obligations 4,765 - ------------- ------------- Total liabilities 1,660,130 1,411,140 ------------- ------------- Shareholders' equity: Preferred stock: $0.001 par value - - Common stock: $0.001 par value 30 30 Additional paid-in capital 153,251 151,467 Accumulated deficit (113,247) (140,681) Accumulated other comprehensive income 27,361 26,013 Treasury stock, at cost (911) (911) ------------- ------------- Total shareholders' equity 66,484 35,918 ------------- ------------- Total liabilities and shareholders' equity $1,726,614 $1,447,058 ============= ============= CONSOLIDATED INCOME STATEMENTS (In Thousands, Except Per Share Amounts) Three Months Ended March 31, ------------------- 2007 2006 --------- -------- Oil and gas revenues $144,749 $45,245 Other revenues 1,598 - --------- -------- Total revenues 146,347 45,245 --------- -------- Costs and operating expenses: Lease operating 21,069 10,693 Exploration 731 141 General and administrative 8,768 7,985 Depreciation, depletion and amortization 53,400 17,270 Accretion 2,960 1,547 Loss on abandonment 77 55 --------- -------- Total costs and operating expenses 87,005 37,691 --------- -------- Income from operations 59,342 7,554 --------- -------- Other income (expense): Interest income 2,068 573 Interest expense (26,799) (11,172) --------- -------- Total other income (expense) (24,731) (10,599) --------- -------- Income (loss) before income taxes 34,611 (3,045) --------- -------- Income tax expense: Current (56) - Deferred (7,121) - --------- -------- Total (7,177) - --------- -------- Net income (loss) $27,434 $(3,045) ========= ======== Preferred dividends - (6,818) --------- -------- Net income (loss) available to common shareholders $27,434 $(9,863) ========= ======== Net income (loss) per common share: Basic $0.92 $(0.34) ========= ======== Diluted $0.89 $(0.34) ========= ======== Weighted average common shares outstanding: Basic 29,969 29,435 ========= ======== Diluted 30,702 29,435 ========= ======== CONSOLIDATED CASH FLOW DATA (In Thousands) Three Months Ended March 31, ------------------- 2007 2006 --------- --------- Cash flows from operating activities: Net income (loss) $27,434 $(3,045) Adjustments to operating activities 68,722 22,583 Changes in assets and liabilities (11,973) 9,306 --------- --------- Net cash provided by operating activities 84,183 28,844 --------- --------- Cash flows from investing activities: Additions to oil and gas properties (169,485) (96,077) Additions to furniture and fixtures (154) (76) Increase in restricted cash (14) (38) --------- --------- Net cash used in investing activities (169,653) (96,191) --------- --------- Cash flows from financing activities: Proceeds from long-term debt 375,000 - Principal payments of long-term debt (178,184) (875) Deferred financing costs (8,445) - Issuance of preferred stock, net of related costs - 145,463 Principal payments of capital lease (23,950) (2,089) Exercise of stock options 230 1,200 --------- --------- Net cash provided by financing activities 164,651 143,699 --------- --------- Effect of exchange rate changes on cash (24) (3,852) --------- --------- Net increase (decrease) in cash and cash equivalents 79,157 72,500 Cash and cash equivalents, beginning of period 182,592 65,566 --------- --------- Cash and cash equivalents, end of period $261,749 $138,066 ========= ========= Hedges, Derivatives and Fixed Price Contracts 2007 --------------------------------------- 1Q 2Q 3Q 4Q FY ------- ------- ------- ------- ------- Gulf of Mexico Fixed Forwards Natural Gas Volumes (MMMBtu) 2,255 3,175 2,740 3,648 11,818 Price ($/MMBtu) $9.81 $8.17 $8.24 $8.40 $8.57 Crude Oil Volumes (MBbls) 297 346 396 396 1,434 Price ($/Bbl) $69.61 $70.74 $70.90 $70.90 $70.60 Equivalents Volumes (MMMBtue) 4,037 5,250 5,114 6,022 20,422 Price ($/MMBtue) $10.60 $9.60 $9.90 $9.74 $9.92 Puts Crude Oil Volumes (MBbls) 585 91 92 92 860 Floor Price ($/Bbl) $57.88 $60.00 $60.00 $60.00 $58.56 North Sea Fixed Forwards Natural Gas Volumes (MMMBtu) 2,700 910 920 5,520 10,050 Price ($/MMBtu) $12.69 $8.02 $8.02 $9.19 $9.92 Hedges, Derivatives and Fixed Price Contracts 2008 ------------------------------------------------- 1Q 2Q 3Q 4Q FY ----------------- ------- ------- ------- ------- Gulf of Mexico Fixed Forwards Natural Gas Volumes (MMMBtu) 4,078 3,625 2,740 2,745 13,188 Price ($/MMBtu) $8.45 $7.98 $8.09 $8.43 $8.24 Crude Oil Volumes (MBbls) 273 273 276 276 1,098 Price ($/Bbl) $70.76 $70.76 $70.76 $70.76 $70.76 Equivalents Volumes (MMMBtue) 5,716 5,263 4,396 4,401 19,776 Price ($/MMBtue) $9.41 $9.17 $9.49 $9.69 $9.43 Puts Crude Oil Volumes (MBbls) 619 619 626 626 2,489 Floor Price ($/Bbl) $54.68 $54.68 $54.68 $54.68 $54.68 North Sea Fixed Forwards Natural Gas Volumes (MMMBtu) 5,460 3,640 3,680 4,140 16,920 Price ($/MMBtu) $9.45 $6.49 $6.49 $8.95 $8.05 2009 --------------------------------------- 1Q 2Q 3Q 4Q FY ------- ------- ------- ------- ------- Gulf of Mexico Fixed Forwards Natural Gas Volumes (MMMBtu) 2,700 1,815 1,830 1,830 8,175 Price ($/MMBtu) $8.60 $7.56 $7.57 $8.10 $8.03 Crude Oil Volumes (MBbls) 180 182 184 184 730 Price ($/Bbl) $66.23 $66.23 $66.23 $66.23 $66.23 Equivalents Volumes (MMMBtue) 3,780 2,907 2,934 2,934 12,555 Price ($/MMBtue) $9.29 $8.87 $8.87 $9.21 $9.08 Puts Crude Oil Volumes (MBbls) 369 373 377 377 1,497 Floor Price ($/Bbl) $54.00 $54.00 $54.00 $54.00 $54.00 North Sea Fixed Forwards Natural Gas Volumes (MMMBtu) 3,150 - - - 3,150 Price ($/MMBtu) $8.30 $- $- $- $8.30 --------------------------------------------------------------------- Exchange rate = 1.9997 USD/GBP The above are hedges, derivatives and fixed price contracts that are currently in effect or have settled prior to such date. Additional hedges, derivatives and fixed price contracts, if any, will be announced during the year. --------------------------------------------------------------------- Recent North Sea Gas Swaps: March 29, 2007: 5,000 MMBtu/d October 2008 to March 2009 at GBP 4.64/MMBtu Recent Gulf of Mexico Oil Puts: April 13, 2007: 4,100 Bbls/d January 2008 to December 2009 floor at $54.00 /Bbl April 13, 2007: 2,000 Bbls/d January 2008 to December 2008 floor at $55.50 /Bbl April 13, 2007: 700 Bbls/d January 2008 to December 2008 floor at $56.30 /Bbl Oil and Gas Revenue Reconciliation (1) (In Thousands) Three Months Ended March 31, ------------------ 2007 2006 --------- -------- Oil and gas revenues, including the effects of settled derivatives (1) $144,675 $45,225 Hedging ineffectiveness and other (2) 74 20 --------- -------- Oil and gas revenue per income statements $144,749 $45,245 ========= ======== (1) Oil and gas revenues including the effects of settled derivative activities differ from our reported revenues from oil and gas production because such numbers omit the effects of previously recognized changes in the fair market value of derivatives settled during the period. Set forth above is a table reconciling the presented information with revenues from oil and gas production. The total of oil and gas revenues, including the effects of settled derivative activities, is presented because of its acceptance as an indicator of the Company's realized cash flow from its oil and gas production during the period for which it is presented. (2) Hedging ineffectiveness is the portion of gains (losses) on derivatives that is based on imperfect correlations to benchmark oil and natural gas prices. Cash Flow From Operating Activities (In Thousands) Three Months Ended March 31, ----------------- 2007 2006 -------- -------- Cash flows from operating activities: Net income (loss) $27,434 $(3,045) Adjustments to operating activities 68,722 22,583 -------- -------- Cash flows from operating activities before changes in assets and liabilities 96,156 19,538 Changes in assets and liabilities (11,973) 9,306 -------- -------- Net cash provided by operating activities $84,183 $28,844 ======== ======== CONTACT: ATP Oil & Gas T. Paul Bulmahn, Chairman and President Albert L. Reese Jr., Chief Financial Officer 713-622-3311 www.atpog.com