-- US drilling activity shows slight gain for holiday week US drilling activity increased slightly this week with 835 rotary rigs working, 9 more than the previous week but still down from 952 during the same period a year ago, officials at Baker Hughes Inc. reported Wednesday.
-- California well explosion under investigation The US Occupational Safety and Health Administration (OSHA) and California's Division of Oil and Gas (DOG) regulatory agency are investigating the cause of an explosion and fire that occurred at a development well being drilled at Tapia Canyon heavy oil field in northern Los Angeles County, Calif., early Saturday morning.
-- US drilling activity rebounds slightly S drilling activity this week climbed by 4 rigs to a total of 830 compared with 993 units that were drilling during the same period a year ago, Baker Hughes Inc. officials reported Friday.
-- US drilling activity falls to 26-week low US drilling activity dropped to the lowest level in 26 weeks with 826 rotary rigs working, down 28 from the previous week and well below the 1,010 units drilling during the same period a year ago.
-- US drilling activity resumes decline After ending a 3-week decline last week, US drilling activity dipped by 2 units this week, with 854 rotary rigs working, down from 1,058 a year ago, Baker Hughes Inc. reported Friday.