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Oil fell under $100 a barrel Friday, the third straight daily decline, on signs that China’s manufacturing was declining and European economic growth slowed, Bloomberg reported.

Retail diesel prices increased for the second week in a row, rising 2.6 cents to $3.854 a gallon, the Department of Energy reported last week.

President Obama has denied a permit for the proposed Keystone XL oil pipeline, but investors, public officials and analysts said the project is likely to move forward on an alternate route, Bloomberg reported Thursday.

A federal judge rejected a request by Navistar Inc. to force the U.S. Environmental Protection Agency to recall all 2010 trucks with selective catalytic reduction engines.

The U.S. trade deficit expanded by 10.4% in November as exports declined to a four-month low, the Commerce Department said Friday.

Retail diesel prices ended six weeks of declines by rising last week for the first time since late November, the Department of Energy reported, as fleet managers said they were bracing for the possible return of $4-a-gallon fuel.

Clean Energy Fuels Corp. has unveiled a plan for the first phase of 150 new natural gas fueling stations, and said it anticipates opening 70 stations in 33 states by the end of the year.

Ryder System said it has signed its first leasing agreement under its “Flex-to-Green” program, which offers companies the option to incorporate alternative fuel vehicles into their fleets.