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Dry Natural Gas Proved Reserves (Billion Cubic Feet)

Area: U.S. Federal Offshore U.S.    Federal Offshore, Pacific (California)    Federal Offshore, Gulf of Mexico, LA & AL    Federal Offshore, Gulf of Mexico, TX Alaska Lower 48 States Alabama Arkansas California    CA, Coastal Region Onshore    CA, Los Angeles Basin Onshore    CA, San Joaquin Basin Onshore    CA, State Offshore Colorado Florida Kansas Kentucky Louisiana    North Louisiana    LA, South Onshore    LA, State Offshore Michigan Mississippi Montana New Mexico    NM, East    NM, West New York North Dakota Ohio Oklahoma Pennsylvania Texas    TX, RRC District 1    TX, RRC District 2 Onshore    TX, RRC District 3 Onshore    TX, RRC District 4 Onshore    TX, RRC District 5    TX, RRC District 6    TX, RRC District 7B    TX, RRC Distict 7C    TX, RRC District 8    TX, RRC District 8A    TX, RRC District 9    TX, RRC District 10    TX, State Offshore Utah Virginia West Virginia Wyoming Miscellaneous Period:  Annual

Download Series History Definitions, Sources & Notes
Show Data By: Data Series Area	2004	2005	2006	2007	2008	2009	View History
Proved Reserves as of Dec. 31	192,513	204,385	211,085	237,726	244,656	272,509	1925-2009
Adjustments	-114	1,887	743	1,147	207	5,098	1977-2009
Revision Increases	26,893	22,353	20,833	32,174	30,674	31,416	1977-2009
Revision Decreases	26,149	19,654	22,669	16,713	33,802	33,035	1977-2009
Sales	11,106	9,130	22,850	14,740	7,603	4,109	2000-2009
Acquisitions	12,950	11,674	25,846	15,148	8,498	3,968	2000-2009
Extensions	18,198	21,050	21,778	27,107	26,687	42,139	1977-2009
New Field Discoveries	759	942	409	796	1,170	1,372	1977-2009
New Reservoir Discoveries in Old Fields	1,206	1,208	1,155	1,188	1,622	2,598	1977-2009
Estimated Production	19,168	18,458	18,545	19,466	20,523	21,594	1977-2009