Private company

Expro

International energy service company

Expro is an energy services provider headquartered in Houston, Texas, United States.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1973Founded1

Expro is an energy services provider headquartered in Houston, Texas, United States.2

Corporate structure

Expro sits at the top of its group. 3 entities, 3 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Expro Reading
    • Expro (Norway) Subsidiary · Tananger, Norway
    • Expro (United States) Subsidiary · United States

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

The story

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. The company was first listed on the London Stock Exchange in 1994. In 2006, it acquired PowerWell Services, another leading well management concern, for $674.5 million.

Takeover

In May 2008, Halliburton made a £1.7 billion takeover of the business, while a competing bid worth £1.8bn was made the following month by Umbrellastream, a Candover-led consortium also comprising Goldman Sachs and Alpinvest. 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. The acquisition of Expro by Umbrellastream was completed in July 2008.

In 2017, the company filed for Chapter 11 bankruptcy protection.

In March 2021 Expro announced a merger with Frank's International. The merger was completed in October 2021 and began trading under NYSE:XPRO.

From Wikipedia’s article on Expro, shared under CC BY-SA 4.0.3

Subsidiaries and ownership

Subsidiaries

From Wikidata.1

Timeline

  1. 1973Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3