OPEC sees other oil countries pumping up more

Oil production by countries that are not members of OPEC oil cartel is increasing this year.

OPEC has increased its expectations for production by non-OPEC countries for the second month in a row.

The increase is almost entirely due to the United States. The higher oil prices make it lucrative for American producers to further increase the production of so-called shale oil.

The OPEC now accounts for production growth of more than 1.4 million barrels of oil a day outside of the oil cartel's influence. That is 240,000 more than what was expected last month. The increase may negate production restrictions agreed by OPEC and a number of other countries.