U.S. energy companies this week added oil rigs for a seventh week in a row, extending a seven-month drilling recovery as crude prices held near a 17-month high.
Drillers added 12 oil rigs in the week to Dec. 16, bringing the total count to 510, the highest since January, but still below 541 rigs a year ago, energy services firm Baker Hughes Inc said on Friday.
In Canada, the rig count rose by four, ending the week at 234.
