U.S. energy firms this week added oil and natural gas rigs for a third week in a row, as a recovery in oil prices prompted some drillers to return to the wellpad over the past year. The oil and gas rig count, an early indicator of future output, rose three to 503 in the week to Aug. 20, its highest since April 2020, energy services firm Baker Hughes Co (BKR.N) said in its closely followed report on Friday. , , That puts the total rig count nearly double from the same period last year, when rig count was 254. U.S. oil rigs rose eight to 405 this week, their highest since April 2020, while gas rigs fell five to 97, […]