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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	3,621	3,791	3,914	3,994	4,031	4,141	1977-2009
Adjustments	80	37	56	82	-8	251	1977-2009
Revision Increases	646	457	607	488	549	541	1977-2009
Revision Decreases	467	412	495	413	441	628	1977-2009
Sales	263	514	297	289	211	149	2000-2009
Acquisitions	434	649	327	218	186	229	2000-2009
Extensions	383	468	370	426	415	317	1977-2009
New Field Discoveries	20	5	35	20	0	0	1977-2009
New Reservoir Discoveries in Old Fields	3	2	0	10	6	3	1977-2009
Estimated Production	516	522	480	462	459	454	1977-2009