Schlumberger While Schlumberger, Halliburton, and Baker Hughes focus their legacy technology and service technology portfolios on driving up efficiency, driving down cost, and making current sources of energy less carbon intensive, the three companies diverge on their approaches to scaling up development and deployment of breakthrough clean energy technologies. Halliburton and Schlumberger have carved out new, small businesses. Halliburton’s is an incubator/accelerator. Schlumberger’s is an umbrella for a portfolio of ventures. Baker Hughes, on the other hand, weaves clean energy technology development through and across its four vertical product companies and product and service lines with cross-functional teams and guidance from its energy transition function.