Natural gas producer Chesapeake Energy Corp. (CHK) boosted its third-quarter output by 7% from the same period a year ago, despite the effects of curtailments and company transactions that had an impact on production.

The Oklahoma City-based energy company's daily production averaged 2.483 billion cubic feet of natural gas equivalent, an increase of 1% from the second quarter and 162 million cubic feet of natural gas equivalent higher than the 2008 third quarter.

Chesapeake anticipates production growth of 5% to 6% in 2009. Production is forecast to increase by 8% to 10% in 2010 and 12% to 14% in 2011, according to a company news release.

Shares of Chesapeake closed up 5.1% at $26.04 and were unchanged in after-market trading

-By Jason Womack, Dow Jones Newswires; 713-547-9201; jason.womack@dowjones.com