HOUSTON (AP) — Oilfield services company Baker Hughes Incorporated says the number of rigs actively exploring for oil and natural gas in the U.S. decreased by 12 this week to 1,759. The Houston-based company said Friday in its weekly report that 1,405 rigs were exploring for oil and 349 for gas. Five were listed as miscellaneous. Among the major oil- and gas-producing states, Oklahoma lost five rigs, while Texas and Louisiana shut down three rigs each. The counts for Arkansas and Colorado were unchanged.