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2012 Annual Report - Stone Energy Corporation

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Changes in Standardized MeasureYear Ended December 31,<strong>2012</strong> 2011 2010Standardized measure at beginning of year ................................. $1,542,962 $957,629 $614,987Sales and transfers of oil, gas and NGLs produced, net ofproduction costs ................................................................. (697,741) (670,347) (487,418)Changes in price, net of future production costs .................... (380,841) 502,324 485,272Extensions and discoveries, net of future productionand development costs ....................................................... 178,272 293,168 270,629Changes in estimated future development costs, net ofdevelopment costs incurred during the period ................... 212,329 97,852 119,986Revisions of quantity estimates .............................................. 76,450 (27,854) 147,509Accretion of discount ............................................................. 207,292 118,722 64,836Net change in income taxes ................................................... 22,947 (300,363) (196,219)Purchases of reserves in-place ............................................... 276,389 567,286 21,264Sales of reserves in-place ....................................................... 2,480 (36,278) 1,424Changes in production rates due to timing and other ............. 73,320 40,823 (84,641)Net increase (decrease) in standardized measure ........... (29,103) 585,333 342,642Standardized measure at end of year ........................................... $1,513,859 $1,542,962 $957,629NOTE 17 — SUMMARIZED QUARTERLY FINANCIAL INFORMATION – UNAUDITED:The results of operations by quarter are as follows:<strong>2012</strong> Quarter EndedMarch 31 June 30 September 30 December 31Operating revenue .............................................. $244,957 $226,561 $227,397 $254,871Income from operations ...................................... 84,927 56,156 44,485 78,397Net income ........................................................ 50,974 30,547 23,659 44,246Basic earnings per share ..................................... $1.03 $0.62 $0.48 $0.89Diluted earnings per share .................................. $1.03 $0.62 $0.48 $0.892011 Quarter EndedMarch 31 June 30 September 30 December 31Operating revenue .............................................. $200,039 $235,734 $214,594 $223,616Income from operations ...................................... 64,752 92,155 80,694 73,399Net income ........................................................ 39,792 57,196 51,821 45,523Basic earnings per share ..................................... $0.81 $1.17 $1.06 $0.93Diluted earnings per share .................................. $0.81 $1.17 $1.06 $0.93F-31

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