Conoco Phillips said Thursday it saw a strong growth in production from North American shale, but Libyan operations remained shut in for the company.

The company said it was discounting Libya in its outlook for the rest of the year.

"Production from continuing operations, excluding Libya, was 4 million barrels of oil equivalent per day in the second quarter, essentially flat compared with the same period in 2013," its second quarter report said. "Libya production remained shut in as a result of the Es Sider terminal shutdown."

Ras Lanuf and Es Sider combine for as much as half of Libya's full export potential of 1.3 million barrels per day. Libyan production has suffered because of ongoing skirmishes between pro-government forces and rival militias.

Early 2014 output has been limited to around 250,000 barrels oil per day.

"The company is raising the midpoint of its 2014 full-year production outlook for continuing operations, excluding Libya," Conoco said. "Full-year production guidance is now approximately 1.52 billion boe per day to 1.5 billion boe per day."

The U.S. supermajor reported strong gains from the Eagle Ford shale play in Texas and the Bakken crude oil formation in North Dakota. Combined output from those two areas increased 38 percent during the second quarter when compared with last year.

Overall, Chairman and Chief Executive Officer Ryan Lance said operational and financial performance during the second quarter was strong.

"We continue to grow in our North American unconventional plays," he said.