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Company Overview

"The best equipment means little without the right people to run it. In the offshore drilling segment of the energy industry, that combination is Mariner Offshore. Our strategy, rigs and people are what set us apart."

We are a leading offshore drilling contractor providing services to exploration and production companies across deepwater and ultra-deepwater basins. Since our founding, we have focused on delivering innovative, technologically advanced drilling solutions to meet the evolving needs of the energy industry, both domestically and abroad. Throughout our history, we have expanded our rig fleet through new-build construction programs as well as strategic acquisitions.

Our Mission

Our mission is to be recognized as the energy industry's offshore drilling company of choice for our customers, employees and investors through innovative, high-quality, value-added drilling solutions delivered with enthusiasm, integrity and professionalism — with the utmost regard for the safety of individuals and the protection of the environment.

At Mariner Offshore, we never forget that we operate in a high-consequence industry, which is why we stay focused on safety and reliability for our customers. Everything we do, from developing leading-edge rig technology to hiring the best crews in the business, is driven by our goal of being the drilling contractor of choice for the industry.

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Sustainability

"A responsible operator protects the waters it works in. Sustainability isn't a report we file — it's a standard we run our rigs by."

Mariner Offshore is committed to reducing our environmental footprint across every rig in our fleet. From fuel-efficient power management to emissions-monitoring systems, we invest in technology that lowers our impact while maintaining the reliability our customers depend on.

Our Commitments

• Reducing rig-wide emissions through hybrid power management and dual-fuel engines
• Advancing well-control and blowout-prevention standards across every rig
• Maintaining rigorous spill-prevention and waste-management protocols
• Investing in crew training focused on environmental stewardship

Read our full annual sustainability report for detailed metrics on emissions, safety performance, and community engagement across our operations.