Information on Oil and Natural Gas Producing Activities

12 Months Ended

Sep. 30, 2012

Information on Oil and Natural Gas Producing Activities [Abstract]

INFORMATION ON OIL AND NATURAL GAS PRODUCING ACTIVITIES

10. INFORMATION ON OIL AND NATURAL GAS PRODUCING ACTIVITIES

All oil and natural gas producing activities of the Company are conducted within the United States (principally in Oklahoma and Arkansas) and represent substantially all of the business activities of the Company.

The following table shows sales through various operators/purchasers during 2012, 2011 and 2010.

	2012			2011			2010
Southwestern Energy Company		15	%		9	%		8	%
Chesapeake Operating, Inc.		13	%		15	%		14	%
Devon Energy Corp.		10	%		9	%		6	%
Newfield Exploration		7	%		14	%		15	%
JMA Energy Company		5	%		7	%		11	%