The total number of active drilling rigs for oil and gas in the United States slipped again in the week ended May 16, according to new data that Baker Hughes published on Friday, following a 6-rig decrease last week. The total rig count in the US fell by 6 to 578 rigs, according to Baker Hughes, down 25 from this same time last year. The number of oil rigs fell by 1 to 473 after falling by 5 during the previous week—and down by 24 compared to this time last year. The number of gas rigs also slipped by 1 last week, to 100 for a loss of 3 active gas rigs from this time last year. The miscellaneous rig count stayed the same at 3.