HOUSTON — The number of rigs exploring for oil and natural gas in the U.S. increased by seven this week to 447.
A year ago, 857 rigs were active. Depressed energy prices have sharply curtailed oil and gas exploration.
Houston oilfield services company Baker Hughes Inc. said Friday that 357 rigs sought oil and 89 explored for natural gas this week. One was listed as miscellaneous.
Among major oil- and gas-producing states, New Mexico gained four rigs and Louisiana three. Colorado, Pennsylvania and Texas were up one each.