News bites: Battle over green energy mandates

The Washington Post reports that state renewable power standards are “facing a fierce backlash from both conservative advocacy groups and fossil-fuel interests.”

Bloomberg explores Shell’s plans to develop shale gas in China.

Reuters reports that U.S. pipeline regulators have fined Exxon $1.7 million over a 2011 spill into the Yellowstone River.

The Wall Street Journal looks at the rough world of Texas power markets and why utility giant Energy Future Holdings faces big debts.