Oilfield services company Baker Hughes Inc. says the number of rigs exploring for oil and natural gas in the U.S. tumbled by 56 this week to 1,069 amid slumping oil prices.

Houston-based Baker Hughes said Friday 825 rigs were seeking oil and 242 exploring for natural gas. Two were listed as miscellaneous. A year ago, 1,803 rigs were active.

Among major oil- and gas-producing states, Texas lost 36 rigs and Louisiana 18. New Mexico declined by five, North Dakota and Ohio each dropped three and Arkansas and Kansas lost two apiece.

Alaska gained four rigs, Pennsylvania and West Virginia were up three, Colorado and Oklahoma two and California one. Utah and Wyoming were unchanged.