The Zacks Analyst Blog Highlights: Halliburton, Schlumberger, Whiting Petroleum, and Continental Resources Posted byZacks Equity Research October 13, 2021 Leave a comment on The Zacks Analyst Blog Highlights: Halliburton, Schlumberger, Whiting Petroleum, and Continental Resources The Zacks Analyst Blog Highlights: Halliburton, Schlumberger, Whiting Petroleum, and Continental Resources