Stranded and flared gas: when oilfield waste is a mining offtake

Oil wells produce gas that nobody nearby can buy. If there is no pipeline, or the pipeline is full, or the price at the hub does not cover the midstream, the operator flares it — burns it in the air — or, worse, vents methane. Bitcoin miners noticed that a flare is a power plant with no offtaker. Put a generator and a container of ASICs on the pad, and the waste stream becomes a behind-the-meter customer.

The US prototype

Crusoe Energy built the template in US shale, branding it digital flare mitigation: modular data centres at the well, gas that would have been flared turned into electricity and then into bitcoin. The company later said the mining fleet had avoided on the order of 21–22 billion cubic feet of flaring and about 2.7 million tonnes of CO₂-equivalent since 2018. In March 2025 it sold the bitcoin-mining unit — hundreds of modular centres across US states and Argentina, on the order of 1 percent of global hashrate in Crusoe’s telling — to NYDIG, so Crusoe could concentrate on AI infrastructure. The electrons did not become un-stranded. The buyer of last resort changed.

MARA (Marathon) ran its own 25 MW stranded-gas pilots in Texas and North Dakota with partners, reporting material methane-abatement figures in the first months. Public miners like the story because it is behind-the-meter, off the crowded interconnection queue, and narratively cleaner than “we compete with households.” The operational catch, well documented by Hashrate Index and operators who lived it: if the oil well shuts in, your power plant dies. You are not buying grid electrons. You are buying a well’s associated gas.

Nigeria’s version

Nigeria is one of the world’s persistent flaring jurisdictions. Industry and local reporting still cite on the order of a billion standard cubic feet of gas flared on some days — enough, in engineering back-of-envelope, for several gigawatts if it were gathered and burned in engines. The grid cannot take it. The communities next to the flare stacks often cannot light a bulb. That is stranded energy in the hard sense.

In 2025 Green Flare announced a gas-connection agreement under the Nigerian Gas Flare Commercialization Programme with the OML 30 joint venture (including NNPC E&P) for three Delta State sites totalling 53 MW, starting with bitcoin mining and talking later about AI, plus a host-community power story. NRG Bloom has been reported as a smaller live example: about 1 MW in Bayelsa on flare gas from early 2025. These are early industrial facts, not a finished basin. Permits, gas quality, security, and who holds title to the coins will decide whether they resemble Crusoe or a press release.

A PPA is not a flare

NexusArc’s Nigeria partner site is off-grid gas with a direct power purchase agreement with the gas company. That is a cousin of the flare model, not the same animal. A flare project lives on waste gas that may stop tomorrow. A PPA is a contracted offtake with a named supplier. Both can be the right answer. Diligence is which one you actually have: meter, nomination, curtailment, and what happens when the well or the plant trips.

When the model fails

• Temporary flowback flares (days, not years) cannot carry a mining hall.
• If methane is vented rather than flared, the climate arithmetic changes — and so should the story you tell a board.
• Oil-price shut-ins kill the gas stream. You need a plan for stranded ASICs, not only stranded gas.
• “Behind the meter” is not a substitute for environmental and community licence. A flare stack with a new neighbour still has neighbours.

For electricity and oil producers, we treat this as energy-mining integration: is there a wasted stream, is it contracted, who owns the machines, and does mining beat the next-best use of the gas (pipeline, LPG, local power). For clients who want hash without running a well pad, we place machines at partner sites — including the Nigerian off-grid gas facility — under one NexusArc contract. We do not own the plant. You own the hardware. Rewards go to your wallet.