The U.S. natural gas rig count climbed one unit to 85 for the week ending Friday (Jan. 15), while the number of active oil rigs surged by double digits, according to data published by Baker Hughes Co. (BKR).

The latest BKR numbers, which are based on data provided in part by Enverus, showed a net increase of 12 domestic oil-directed rigs for the week, joining the net gain in the natural gas patch to make it a baker’s dozen for the overall U.S. count. The United States ended the period with 373 rigs, 423 units shy of the 796 rigs active a year ago.

Land drilling increased by 13, while one rig was added in inland waters. The Gulf of Mexico dropped one rig to fall to 16, versus 20 in the year-ago period. Horizontal units increased by 12, while one vertical unit was added during...