By Scott DiSavino Jan 12 (Reuters) - U.S. energy companies added 10 oil rigs this week, the biggest increase since June, as crude prices rose to their highest levels in three years, prompting drillers to return to the well pad. The total rig count rose to 752 in the week to Jan. 12, the most since September, General Electric Co's Baker Hughes energy services firm said in its closely followed report on Friday. The U.S. rig count, an early indicator o


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Reuters