Exhibit 99.1 EPL Announces Fourth Quarter and Year End Results for 2006 Reports Record 2006 Annual Production and Revenue NEW ORLEANS--(BUSINESS WIRE)--March 1, 2007--Energy Partners, Ltd. ("EPL" or the "Company") (NYSE:EPL) today reported financial and operational results for the fourth quarter of 2006 and the full year, including year end 2006 proved reserves and reserve replacement. The Company also noted that its Board of Directors has scheduled meetings for the week of March 5, 2007 regarding its exploration of strategic alternatives. The Company plans an announcement of the status or recommendations as soon as possible thereafter. Financial Results For the fourth quarter of 2006, EPL reported a net loss to common stockholders of $52.5 million, or $1.35 per diluted share, compared to net income for the fourth quarter of 2005 of $28.1 million, or $0.69 per diluted share. While EPL's production and revenue were near record highs, the Company said the majority of the net loss for the fourth quarter of 2006 was attributable to $77.9 million of pre-tax, non-cash costs associated with property impairments. The majority of the impairments were associated with onshore South Louisiana properties acquired in early 2005 and were due in large part to lower commodity price forecasts as compared with the prior year. The remaining impairment costs were mainly due to mechanical difficulties encountered in one offshore well located in East Cameron 378. The fourth quarter loss also included a total of $11.9 million of pre-tax costs related to the termination of the merger agreement between EPL and Stone Energy Corporation ("Stone") and legal and financial advisor costs related to the Stone merger, unsolicited offer to acquire EPL by ATS Inc. ("ATS"), a wholly-owned subsidiary of Woodside Petroleum, Ltd. (ASX:WPL), and costs related to EPL's exploration of strategic alternatives. Excluding the after-tax impact of $57.5 million of impairment costs and the Stone, ATS and strategic alternatives costs, EPL's adjusted fourth quarter net income, a non-GAAP measure, would have been $4.9 million or $0.13 per basic share (see reconciliation of adjusted net income in the appendix). For the year 2006, the net loss to common stockholders was $50.4 million, or $1.32 per diluted share, compared to net income in 2005 of $72.2 million, or $1.79 per diluted share. The benefit of record annual production and revenue was offset by $84.7 million of non-cash, pre-tax property impairment costs for the full year 2006. The net loss for the year also included $51.5 million of pre-tax costs related to the merger agreement between EPL and Stone and its subsequent termination, and $15.0 million in legal and financial advisor costs associated with the Stone merger, the unsolicited ATS offer, and EPL's exploration of strategic alternatives. Excluding the after-tax impact of $96.8 million of impairment costs, and the costs related to Stone, ATS and strategic alternatives, EPL's adjusted 2006 net income, a non-GAAP measure, would have been $46.4 million or $1.21 per basic share (see reconciliation of adjusted net income in the appendix). Revenue for the fourth quarter of 2006 was $111.6 million, up 4% compared to fourth quarter 2005 revenues of $107.3 million. Revenue for the year 2006 was $449.6 million, a 12% increase over 2005 revenues of $402.9 million. Discretionary cash flow, which is cash flow from operations before changes in working capital and exploration expenditures, totaled $65.0 million in the fourth quarter of 2006, versus $98.6 million in the fourth quarter last year. For the full year, discretionary cash flow was $279.1 million compared to $308.8 million in 2005 (see reconciliation of discretionary cash flow in appendix). Cash flow from operations in the most recent quarter was $86.7 million, compared to $16.3 million in the fourth quarter of 2005. Cash flow from operations for 2006 totaled $272.1 million compared to $270.0 million in 2005. In the fourth quarter of 2006, production averaged 27,080 barrels of oil equivalent (Boe) per day, compared to 18,583 Boe per day in the fourth quarter of 2005. While the daily average for the fourth quarter of 27,080 Boe per day was up significantly from the third quarter average of 25,421 Boe per day, it was below the Company's guidance range of 28,500 to 30,500 Boe per day. This was due primarily to production start-up delays and higher than anticipated downtime, due to inclement weather and mechanical problems, of which the majority have since been resolved. Natural gas production in the fourth quarter of 2006 averaged 105.7 million cubic feet (Mmcf) per day and oil production averaged 9,465 barrels per day. Production for 2006 averaged 25,912 Boe per day, a record high for the Company and a 14% increase over the 2005 average of 22,722 Boe per day. Natural gas production averaged 106.0 Mmcf per day in 2006, and oil production averaged 8,238 barrels per day. Price realizations, all of which are stated net of hedging impact, averaged $53.64 per barrel for oil and $6.67 per thousand cubic feet (Mcf) of natural gas in the fourth quarter of 2006, compared to $45.16 per barrel and $11.39 per Mcf in the fourth quarter of 2005. For 2006, oil price realizations averaged $59.78 per barrel and natural gas averaged $6.96 per Mcf compared to $46.45 per barrel and $8.26 per Mcf in 2005. As of December 31, 2006, the Company had cash on hand of $3.2 million, total debt of $317.0 million, and a debt to total capitalization ratio of 46%. The Company also had $83.0 million of remaining capacity available under its bank facility at year-end 2006. Richard A. Bachmann, EPL's Chairman and CEO, commented, "Our fourth quarter results were clearly overshadowed by the impairments of properties, in large part related to properties purchased in 2005 in our onshore South Louisiana acquisition. The exploratory success we have enjoyed onshore over the last two years has been offset by the significant negative reserve revisions we took at the end of 2005 on the reserves we acquired and the subsequent impairment of properties this year due in large part to lower price forecasts as compared to the prior year. In addition, our overall 2006 financial results were negatively impacted by the considerable expenses associated with the Stone merger agreement and its subsequent termination, the legal and financial costs associated with the unsolicited offer by ATS, and the additional costs incurred in the exploration of strategic alternatives." Reserve Replacement and Costs EPL's proved reserves at year end 2006 stood at 29.9 million barrels of oil and 170.1 billion cubic feet of natural gas, or 58.3 million Boe, down 2% from 59.3 million Boe at year end 2005. EPL's proved reserves at year-end 2006 were 49% natural gas and 51% oil, and 76% were classified as proved developed. In 2006, the Company replaced 92% of its 2006 production at an average cost of $45.97 per Boe, based on total finding and development costs of $398.9 million (see reconciliation in the appendix). EPL added 8.4 million Boe from its exploration and development program. The Company recorded 0.2 million Boe in revisions to its proved reserves in 2006, reflecting overall positive revisions from year-end 2005 reserves for both its Gulf of Mexico ("GOM") Shelf asset base and its onshore South Louisiana asset base. All of the Company's proved reserve figures are based upon third party engineering estimates prepared by Ryder Scott Company, L.P. and Netherland, Sewell & Associates, Inc. Bachmann continued, "Our 76% exploratory drilling success rate in 2006 was back to our historical track record, but the percentage replacement of 2006 production was below our expectations. While we had a number of good discoveries during the year, we did not have a sizable success in our high potential, high risk exploratory program. The majority of our discoveries were made on the Shelf and onshore, and were moderate in size. The full reserve potential of these wells was not booked as proved reserves in 2006. With the benefit of more production history in the wells drilled in 2006, we would expect to see significant additions to our proved reserve base in the future from our internal estimates of approximately 5 million Boe of probable reserves associated with those wells, or 9% of our end of year proved reserves. In 2007, we expect to conclude the evaluation of the wells drilled in the deepwater GOM in 2006, and also to drill more moderate risk, high potential wells, with a focus on those around our existing fields in the South Timbalier area." Operational Highlights EPL drilled 27 exploratory wells in 2006 on the GOM Shelf, in the deepwater GOM and onshore in South Louisiana. At year end, the Company had decisioned 25 of those wells with 16 discoveries in 20 wells offshore and three discoveries in five wells onshore for an overall exploratory success rate of 76%. Overall, EPL experienced an exploratory success rate of 76% in 2006, within the Company's historical success range, and an improvement over the 2005 success rate of 64%. Two additional wells in the deepwater GOM that also encountered hydrocarbons are still being evaluated. A table of EPL's 2006 exploratory wells is available in the appendix. In addition to exploratory drilling, EPL drilled two successful development wells, and completed 35 workovers and recompletions in 2006. Three exploratory wells also successfully found the intended development objectives. Overall, EPL was 100% successful in its low risk drillwell program. At year end, undeveloped gross acres stood at 387,938, a 68% increase over the year end 2005 undeveloped acreage of 231,547. Total gross undeveloped and developed acreage at year end 2006 was 607,444 acres. Deepwater In the first quarter of 2006, EPL entered the deepwater GOM through a 25% working interest in 23 undeveloped leases from Noble Energy, Inc. (NYSE:NBL). Currently EPL has ownership in 24 leases. During the year, three deepwater wells were drilled in Mississippi Canyon 204 (Redrock), 248 (Raton), and 292 (Raton South), all of which found hydrocarbons. The first production planned in this area will be from a natural gas interval discovered in the Raton well last year, with production commencing in late 2007 or early 2008. The other two wells in Mississippi Canyon 204 and 292 are under evaluation. The Company currently has ten identified prospects in the deepwater GOM with over 380 million Boe of net unrisked potential reserves on acreage located in the Mississippi Canyon, Garden Banks, Green Canyon, Atwater Valley, and Vioska Knoll areas. 2007 Operational Update Year to date in 2007, EPL has decisioned one well offshore at South Marsh Island 79 #2. The moderate risk, moderate potential well, which reached its intended depth of 11,296 feet, was a dryhole. EPL had a 100% working interest in the well. The Company will recognize dry hole expense of $5.3 million in the first quarter of 2007 in connection with the well. The Company currently has four exploratory wells underway, including the moderate risk, high potential South Timbalier 46 #3 well located on the Shelf, two moderate risk, moderate potential wells located in South Timbalier 26 and South Pass 38 on the Shelf, and one high risk, high potential prospect called Barracuda located onshore in Terrebonne Parish. EPL's total budget for its 2007 exploration and development program is $300 million and expected to be funded entirely through internally generated cash flow. The Company does not budget for acquisitions. The Company is currently scheduled to drill 17 exploratory wells offshore in 2007 along with six exploratory wells onshore. The exploratory program consists of 23 wells with net unrisked potential reserves of 47 million Boe. Approximately 70% of the exploration budget is dedicated to moderate to high potential prospects in legacy assets and areas with recent discoveries, such as the South Timbalier, East Cameron and Vermilion areas on the Shelf. The budget currently includes seven high potential prospects, with five of the seven wells in the moderate risk category. The Company expects 2007 production to average between 26,000 to 28,000 Boe/day, representing an increase at the upper end of the range of approximately 8% over 2006 annual production of 25,912 Boe/day. EPL has scheduled a conference call to review fourth quarter and year end 2006 results this morning, March 1, 2007, at 8:30 A.M. central time. To participate in the EPL conference call, callers in the United States and Canada can dial (877) 612-5303 and international callers can dial (706) 634-0487. The Conference I.D. for callers is 9215033. The call will be available for replay beginning two hours after the call is completed through midnight of March 6, 2007. For callers in the United States and Canada, the toll-free number for the replay is (800) 642-1687. For international callers the number is (706) 645-9291. The Conference I.D. for all callers to access the replay is 9215033. The conference call will be webcast live as well as for on-demand listening at the Company's web site, www.eplweb.com. Listeners may access the call through the "Conference Calls" link in the Investor Relations section of the site. The call will also be available through the CCBN Investor Network. Founded in 1998, EPL is an independent oil and natural gas exploration and production company based in New Orleans, Louisiana. The Company's operations are focused along the U. S. Gulf Coast, both onshore in south Louisiana and offshore in the Gulf of Mexico. Forward-Looking Statements This press release contains forward-looking information regarding EPL that is intended to be covered by the safe harbor "forward-looking statements" provided by the Private Securities Litigation Reform Act of 1995. All statements included in this press release that address activities, events or developments that EPL expects, believes or anticipates will or may occur in the future are forward-looking statements. These include statements regarding: -- reserve and production estimates, -- oil and natural gas prices, -- the impact of derivative positions, -- production expense estimates, -- cash flow estimates, -- future financial performance, -- planned capital expenditures, -- the completion of any transaction; and -- other matters that are discussed in EPL's filings with the Securities and Exchange Commission (SEC). These statements are based on current expectations and projections about future events and involve known and unknown risks, uncertainties, and other factors that may cause actual results and performance to be materially different from any future results or performance expressed or implied by these forward-looking statements. There is no assurance that the exploration of strategic alternatives will result in any agreements or transactions. Please refer to EPL's filings with the SEC, including Form 10-K for the year ended December 31, 2006 to be filed shortly, for a discussion of these risks. The documents filed with the SEC by EPL may be obtained free of charge from EPL's website at www.eplweb.com or by directing a request to: Energy Partners, Ltd. 201 St. Charles Avenue, Suite 3400, New Orleans, Louisiana 70170, Attn: Secretary, (504) 569-1875. Appendix 2006 Exploratory Wells EPL Working Lease Well Number Interest Risk Result Region - ---------------------- ------------ -------- ---- ---------- --------- West Cameron 98 (1) #3st 100% Mod Success Shelf West Cameron 3 #1 25% Mod Success Shelf West Cameron 176 #1 25% Mod Success Shelf Vermilion 101 #1 75% Mod Success Shelf South Timbalier 46 (1) #3 100% Mod Success Shelf South Timbalier 42 (1) #2 60% Mod Success Shelf South Marsh Island 79 #1 100% Mod Success Shelf Eugene Island 312 #1 40% Mod Success Shelf East Cameron 46 #A-6 25% Mod Success Shelf East Cameron 268 #1 50% Mod Success Shelf East Cameron 109 #5 75% Mod Success Shelf East Cameron 109 #A-6 50% Mod Success Shelf South Timbalier 23 #CM-2st 27% Mod Success Shelf South Timbalier 23 #SB-15st3 27% Low Success Shelf South Timbalier 23 #CC-4st 27% Low Success Shelf West Cameron 202 #1 25% High Dryhole Shelf South Pass 26 #1 (Denali) 40% High Dryhole Shelf West Cameron 25 #1 100% High Dryhole Shelf Grand Island 66 #1 50% Mod Dryhole Shelf Lakeside Dixie Rice#1 45% High Success Onshore Little Lake #3 50% Mod Success Onshore Little Lake S/L 18143 #1 50% Mod Success Onshore Bay Batiste #1 25% Mod Dryhole Onshore Four Rivers #1 33% Mod Dryhole Onshore Mississippi Canyon 248 #1 25% Mod Success Deepwater Mississippi Canyon 204 #1 25% Mod Evaluating Deepwater Mississippi Canyon 292 #5 25% Mod Evaluating Deepwater (1) Wells with development sands. ENERGY PARTNERS, LTD. CONSOLIDATED STATEMENTS OF OPERATIONS (In Thousands, except per share data) Three Months Ended Years Ended December 31, December 31, ------------------- --------------------- 2006 2005 2006 2005 --------- --------- ----------- --------- (Unaudited) (Unaudited) Revenues: Oil and natural gas $111,592 $106,345 $449,186 $402,005 Other 42 919 364 942 --------- --------- ----------- --------- 111,634 107,264 449,550 402,947 --------- --------- ----------- --------- Costs and expenses: Lease operating 14,092 9,711 58,808 50,431 Transportation expense 490 258 2,028 1,051 Taxes, other than on earnings 2,684 2,114 13,632 10,372 Exploration expenditures, dry hole costs and impairments 81,934 29,904 136,425 82,844 Depreciation, depletion and amortization 58,996 23,148 198,162 99,524 Accretion expense 1,322 1,071 4,572 4,125 General and administrative 26,919 12,922 120,113 43,205 Other expense 1,478 - 4,022 - --------- --------- ----------- --------- Total costs and expenses 187,915 79,128 537,762 291,552 --------- --------- ----------- --------- Business interruption recovery 1,293 20,632 32,869 20,632 Income (loss) from operations (74,988) 48,768 (55,343) 132,027 --------- --------- ----------- --------- Other income (expense): Interest income 348 263 1,428 781 Interest expense (7,380) (4,809) (24,570) (18,121) --------- --------- ----------- --------- (7,032) (4,546) (23,142) (17,340) --------- --------- ----------- --------- Income (loss) before income taxes (82,020) 44,222 (78,485) 114,687 Income taxes 29,474 (16,118) 28,085 (41,592) --------- --------- ----------- --------- Net income (loss) (52,546) 28,104 (50,400) 73,095 Less dividends earned on preferred stock and accretion of discount - - - (944) --------- --------- ----------- --------- Net income (loss) available to common stockholders $(52,546) $28,104 $(50,400) $72,151 ========= ========= =========== ========= Basic earnings (loss) per share $(1.35) $0.74 $(1.32) $1.94 ========= ========= =========== ========= Diluted earnings (loss) per share $(1.35) $0.69 $(1.32) $1.79 ========= ========= =========== ========= Weighted average common shares used in computing income (loss) per share: Basic 38,947 37,984 38,313 37,097 Incremental common shares - 2,877 - 3,662 --------- --------- ----------- --------- Diluted 38,947 40,861 38,313 40,759 ========= ========= =========== ========= Net income (loss) available to common stockholders, as reported: $(52,546) $28,104 $(50,400) $72,151 Add back: Impact of property impairments on the periods presented 77,939 7,968 84,680 17,907 Impact of merger and acquisition costs on the periods presented 11,873 - 66,520 - Deduct: Impact of income taxes on impairments and merger and acquisition costs at a rate of 36% (32,332) (2,868) (54,432) (6,447) --------- --------- ----------- --------- Adjusted Non-GAAP net income (Unaudited) $4,934 $33,204 $46,368 $83,611 ========= ========= =========== ========= The table above reconciles net income (loss) as reported to an adjusted non-GAAP amount and is provided as supplemental information, and should not be relied upon as alternative measures to GAAP. The Company's management utilizes both the GAAP and the non-GAAP results, calculated above, to evaluate the Company's performance and believes that comparative analysis of results can be enhanced by excluding the impact of the certain items. Management believes in certain cases, the Company's GAAP results are not indicative of the Company's operating performance for the applicable period, nor should they be considered in developing trend analysis for future periods. Specifically, the Company believes that it is useful to provide investors with information regarding the impact of merger and acquisition costs as well as property impairments on the periods presented because these items are not typical and are not expected to be reoccuring at these levels. ENERGY PARTNERS, LTD. CONSOLIDATED STATEMENTS OF NET CASH PROVIDED BY OPERATING ACTIVITIES (In Thousands) Three Months Ended Years Ended December 31, December 31, ------------------- --------------------- 2006 2005 2006 2005 --------- --------- ----------- --------- (Unaudited) (Unaudited) Cash flows from operating activities: Net income (loss) $(52,546) $28,104 $(50,400) $73,095 Adjustments to reconcile net income (loss) to net cash provided by operating activities: Depreciation, depletion and amortization 60,318 24,219 202,734 103,649 (Gain) loss on sale of oil and natural gas assets 550 (869) 4,047 (777) Stock-based compensation 3,070 550 11,038 6,817 Deferred income taxes (29,124) 16,114 (27,452) 41,242 Exploration expenditures 80,341 28,718 122,449 69,926 Amortization of deferred financing costs 429 249 1,133 995 Other 392 292 1,587 966 Changes in operating assets and liabilities: Trade accounts receivable (1,582) (32,572) 2,390 (18,985) Other receivables 35,111 (36,881) (8,966) (43,703) Prepaid expenses (1,770) 1,282 (391) (894) Other assets (419) (607) 283 (2,338) Accounts payable and accrued expenses (8,977) (12,318) 13,599 40,073 Other liabilities 897 17 23 (97) --------- --------- ----------- --------- Net cash provided by operating activities $86,690 $16,298 $272,074 $269,969 ========= ========= =========== ========= Reconciliation of discretionary cash flow: Net cash provided by operating activities 86,690 16,298 272,074 269,969 Changes in working capital (23,260) 81,079 (6,938) 25,944 Non-cash exploration expenditures (80,341) (28,718) (122,449) (69,926) Total exploration expenditures 81,934 29,904 136,425 82,844 --------- --------- ----------- --------- Discretionary cash flow (Unaudited) $65,023 $98,563 $279,112 $308,831 ========= ========= =========== ========= The table above reconciles discretionary cash flow to net cash provided by operating activities. Discretionary cash flow is defined as cash flow from operations before changes in working capital and exploration expenditures. Discretionary cash flow is widely accepted as a financial indicator of an oil and natural gas company's ability to generate cash which is used to internally fund exploration and development activities, pay dividends and service debt. Discretionary cash flow is presented based on management's belief that this non- GAAP financial measure is useful information to investors because it is widely used by professional research analysts in the valuation, comparison, rating and investment recommendations of companies within the oil and natural gas exploration and production industry. Many investors use the published research of these analysts in making their investment decisions. Discretionary cash flow is not a measure of financial performance under GAAP and should not be considered as an alternative to cash flows from operating activities, as defined by GAAP, or as a measure of liquidity, or an alternative to net income. Investors should be cautioned that discretionary cash flow as reported by us may not be comparable in all instances to discretionary cash flow as reported by other companies. ENERGY PARTNERS, LTD. SELECTED PRODUCTION, PRICING AND OPERATIONAL STATISTICS (Unaudited) Three Months Ended Years Ended December 31, December 31, ------------------- ------------------- 2006 2005 2006 2005 --------- --------- --------- --------- PRODUCTION AND PRICING - ------------------------------ Net Production (per day): Oil (Bbls) 9,465 4,916 8,238 7,984 Natural gas (Mcf) 105,687 82,001 106,042 88,430 Total (Boe) 27,080 18,583 25,912 22,722 Oil and Natural Gas Revenues (in thousands): Oil $46,705 $20,423 $179,752 $135,359 Natural gas 64,887 85,922 269,434 266,646 Total 111,592 106,345 449,186 402,005 Average Sales Prices: Oil (per Bbl) $53.64 $45.16 $59.78 $46.45 Natural gas (per Mcf) 6.67 11.39 6.96 8.26 Average (per Boe) 44.79 62.20 47.49 48.47 Impact of hedging: Oil (per Bbl) $- $(6.50) $- $(3.15) Natural gas (per Mcf) 0.03 (1.03) (0.02) (0.24) OPERATIONAL STATISTICS - ------------------------------ Average Costs (per Boe): Lease operating expense $5.66 $5.68 $6.22 $6.08 Taxes, other than on earnings 1.08 1.24 1.41 1.25 Depreciation, depletion and amortization 23.68 13.54 20.95 12.00 Accretion expense 0.53 0.63 0.48 0.50 ENERGY PARTNERS, LTD. CONSOLIDATED BALANCE SHEETS (In Thousands, except share data) December 31, December 31, 2006 2005 ------------ ------------ (Unaudited) ASSETS - -------------------------------------------- Current assets: Cash and cash equivalents $3,214 $6,789 Trade accounts receivable 74,132 78,326 Other receivables 58,269 49,303 Deferred tax asset 1,387 5,582 Prepaid expenses 3,570 3,179 ------------ ------------ Total current assets 140,572 143,179 Property and equipment, at cost under the successful efforts method of accounting for oil and natural gas properties 1,527,304 1,189,078 Less accumulated depreciation, depletion and amortization (680,845) (418,347) ------------ ------------ Net property and equipment 846,459 770,731 Other assets 13,029 13,284 Deferred financing costs -- net of accumulated amortization 3,785 4,091 ------------ ------------ $1,003,845 $931,285 ============ ============ LIABILITIES AND STOCKHOLDERS' EQUITY - -------------------------------------------- Current liabilities: Accounts payable $47,154 $28,810 Accrued expenses 133,198 108,087 Fair value of commodity derivative instruments 1,552 9,875 Current maturities of long-term debt - 109 ------------ ------------ Total current liabilities 181,904 146,881 Long-term debt 317,000 235,000 Deferred income taxes 62,451 87,559 Asset retirement obligation 68,767 56,039 Other 1,453 11,213 ------------ ------------ 631,575 536,692 Stockholders' equity: Preferred stock, $1 par value, authorized 1,700,000 shares; no shares issued and outstanding - - Common stock, par value $0.01 per share. Authorized 100,000,000 shares; issued and outstanding: 2006 - 42,501,726 shares; 2005 - 41,468,093 shares 425 415 Additional paid-in capital 365,313 348,863 Accumulated other comprehensive loss (994) (12,619) Retained earnings 64,966 115,366 Treasury stock, at cost. 2006 - 3,479,814 and 2005 - 3,474,208 shares (57,440) (57,432) ------------ ------------ Total stockholders' equity 372,270 394,593 Commitments and contingencies ------------ ------------ $1,003,845 $931,285 ============ ============ ENERGY PARTNERS, LTD. SUPPLEMENTAL OIL & NATURAL GAS DISCLOSURE (Unaudited) Crude Oil Natural Gas Equivalents (Mbbl) (Mmcf) (Mboe) ----------- ----------- ----------- Proved developed and undeveloped reserves: December 31, 2003 27,414 134,404 49,815 Extensions, discoveries and other additions 3,232 67,049 14,407 Revisions 1,295 (21,570) (2,300) Production (3,171) (30,048) (8,179) ----------- ----------- ----------- December 31, 2004 28,770 149,835 53,743 Purchases of reserves in place 3,949 52,690 12,731 Extensions, discoveries and other additions 1,086 24,490 5,168 Revisions 587 (27,789) (4,045) Production (2,914) (32,277) (8,294) ----------- ----------- ----------- December 31, 2005 31,478 166,949 59,303 Sales of reserves in place (129) (750) (254) Extensions, discoveries and other additions 1,057 44,336 8,446 Revisions 515 (1,704) 231 Production (3,007) (38,708) (9,458) ----------- ----------- ----------- December 31, 2006 29,914 170,123 58,268 Proved developed reserves: December 31, 2004 24,737 102,760 41,864 December 31, 2005 25,646 103,627 42,917 December 31, 2006 24,811 117,392 44,376 Costs incurred for oil and natural gas property acquisition, exploration and development activities for the three-years ended December 31 are as follows (in Thousands): 2006 2005 2004 ----------- ----------- ----------- Business combinations 420 171,358 2,166 Lease acquisitions 15,896 27,622 6,551 Exploration 224,147 171,859 113,278 Development 158,837 107,910 72,235 ----------- ----------- ----------- Total finding and development costs 398,880 307,391 192,064 ----------- ----------- ----------- Total finding, development and acquisition costs 399,300 478,749 194,230 ----------- ----------- ----------- Asset retirement liabilities incurred 5,947 7,151 3,686 Asset retirement revisions 2,562 (247) (189) ----------- ----------- ----------- Total cost incurred $407,809 $485,653 $197,727 All of the amounts reflected as business combinations in 2006 and 2004 and $0.9 million in 2005 relate to the contingent consideration payments made to former Hall-Houston shareholders. CONTACT: Energy Partners, Ltd., New Orleans Investors: T.J. Thom, 504-799-4830 or Al Petrie, 504-799-1953 or Media: Joele Frank, Wilkinson Brimmer Katcher Steve Frankel or Jeremy Jacobs, 212-355-4449