Expro is an energy services provider headquartered in Houston, Texas, United States.

The company was founded by J. Trewhella, J. Ross and H. Green in 1973 at Great Yarmouth as Exploration & Production Services (North Sea) Ltd with the objective of carrying out well testing in the North Sea.

In 1986, about 84% of the company was acquired by Flextech from whom the management subsequently bought out the business in 1992.

In 2006, it acquired PowerWell Services, another leading well management concern, for $674.5 million.

[3][4] An improved bid from Halliburton was then rejected by the Expro board, a position backed by the High Court after an appeal lodged by a group of activist shareholders.