The number of oil-directed rigs fell by six for a total of 1416 while gas rigs slipped by seven to total 351. There were three fewer rigs drilling in the Gulf of Mexico for a total of 54.
The Marcellus shale play in the Appalachian basin saw the biggest movement on the week, losing five rigs for a total of 81. West Virginia was the biggest loser among states, shedding 4 rigs to total 29.
The Utica, also in the Appalachian basin, gained one rig for 41. Ohio also gained one for a total of 39.
The Granite Wash lost three rigs to total 54 and the Cana Woodford also lost three for 37.
The Williston basin lost a pair of rigs for 177.
The Eagle Ford was up two rigs on 216, as was the Permian basin for 483.
The Mississippian gained three rigs for 78.
The Haynesville and Fayettevill gas shales were both flat on 43 and nine rigs, respectively.
Among states, Texas gained three rigs for 845 and is up 21 rigs from a year earlier.
Louisiana was down three on 111, flat over the past 12 months.