Do we like Halliburton?
Oilfield services giant (fracking, drilling, well completion) based in Houston, Texas.
Our score: 3 out of 10. We wouldn't back them. They help the fossil fuel industry expand and have a record of environmental fines. We found little to offset that.
Halliburton is one of the world's biggest oilfield services firms, based in Houston. It doesn't pump oil itself. It sells the drilling, fracking and well-completion work to the companies that do. Jeff Miller is chairman, president and CEO, and he took on the chairman job after Dave Lesar retired.
Miller told Fortune in April 2026 that US oil activity was in the 'early innings' of a rebound. He also said he was bullish on Venezuela reopening to international investment. That's good news for the firm's business but not for anyone hoping for lower fossil fuel output.
The environmental record is patchy. In 2014 Pennsylvania's DEP reached a $1.8 million agreement over waste violations at a Homer City facility, though it said there was no evidence of actual harm. The EPA also settled for over $400,000 over diesel trucks in California that lacked required particulate filters.
Our score is a 3. The company does a job that economies lean on, but it profits directly from more drilling and it has a record of fines. The search turned up no standout good deeds to balance that.