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Transocean owns and rents out the giant floating rigs that oil companies use to drill wells deep under the ocean.
Transocean is an offshore drilling contractor. It does not hunt for oil itself and it does not own the oil that comes out of the ground. Instead, it owns a fleet of drilling rigs — mostly ultra-deepwater floaters and harsh-environment rigs — and rents them, along with the crews who run them, to big oil and gas companies that want to drill under thousands of feet of ocean water. Think of it as a landlord for the hardest drilling machines on earth.
The customer list is a who's who of the oil majors and national oil companies, outfits like Shell, Equinor, Petrobras, and Chevron. They pay Transocean a day rate — a fixed fee per rig per day — and the numbers are enormous. A single deepwater rig can fetch several hundred thousand dollars a day, sometimes more when demand is hot. The customer is buying the ability to drill a very expensive hole in a very difficult place without having to own and maintain the rig itself. Transocean's edge comes from scale, technical know-how, and a fleet built for the deep and nasty corners of the ocean. The business is brutally cyclical, and that history is worth knowing. Transocean helped drill the infamous Macondo well that blew out in the Gulf of Mexico in 2010, an explosion that killed eleven workers and triggered the largest offshore oil spill in U.S. history. The company later agreed to pay roughly $1.4 billion in civil and criminal penalties. More broadly, offshore drilling booms and busts with the oil price. After the 2014 oil crash, day rates collapsed and many rigs went idle and were scrapped. Transocean has spent years carrying heavy debt, and it has repeatedly leaned on its fleet and its contract backlog to get by. It also booked a huge goodwill impairment in recent years as the value of its rigs sagged, and it has pushed to sell older rigs and focus on newer, higher-spec vessels that deepwater customers actually want. So the money machine is simple but not safe. When oil companies are flush and want to develop deepwater fields, they sign long contracts at fat day rates, and Transocean collects steady cash. When prices fall, customers cancel or delay, rigs sit idle, and the debt bills keep coming. That is why the company's fortunes swing so hard with the oil cycle, and why a single rig contract, or the loss of one, can move the stock.
Saved answer · last researched 21 Oct 2026
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