By Adam Wilmoth Energy Editor awilmoth@oklahoman.comConocoPhillips Inc. plans to cut about 10 percent of its global workforce, or about 1,800 jobs, the Houston-based oil and natural gas company said Tuesday. The company did not detail where the job cuts will take place, but it said the largest percentage will be in North America. "We'll know more in the next several weeks as we work through our formal process," a ConocoPhillips spokesman in Bartlesville told The Oklahoman on Tuesday.