Devon Energy (NYSE:DVN) today reported second-quarter net earnings of $683 million, or $1.69 per diluted share. That is a 43% increase over  second-quarter 2012 net earnings of $477 million, or $1.18 per diluted share.

The company produced an average daily 698,000 oil-equivalent barrels (Boe) per day for the quarter. That is the highest-ever average daily production it has gotten from its North American properties. Better-than-expected results from areas that included the Permian Basin and Barnett Shale contributed to the record production.

The Permian Basin delivered the highest growth with a 36% increase in oil production over last year's second quarter.

"The second quarter was an outstanding one for Devon as we continued to successfully grow high-margin oil production," said Devon CEO John Richels in the company's earnings statement.

Although it announced $1.4 billion of cash flow, an increase of 31% over Q2 2012, after deducting $1.6 billion for capital expenditures, it actually had negative free cash flow of $247 million.

Devon said it repatriated $2 billion of foreign cash to the U.S. at an estimated tax rate of 5% and transferred $500 million to Canada on a tax-free basis.

The company showed cash and short-term investments of $4.2 billion against $8 billion in long-term debt.