ANCHORAGE, Alaska (KTUU) – There is evidence of a diesel spill after Doyon 26 toppled over on Friday, according to the Alaska Department of Environmental Conservation.
“According to the Spill Prevention, Control, and Countermeasure Plan (SPCC) for Rig 26, the maximum potential product on board was 8,400 gallons of diesel, 1,930 gallons hydraulic oil, and 85 gallons of ethylene glycol,” the department wrote in the situation report released Sunday evening.
About 4,000 gallons of diesel were on board when the tanks were checked about 30 minutes before the rig tipped over, the department said.
“Evidence of a diesel spill has been confirmed by emergency responders; however, further assessments are in progress,” it said in the report, which also indicated no ongoing leaks were observed as of 1 p.m. Sunday.

The situation report noted Doyon Drilling, Inc. as the responsible party.
Sarah Obed, the Public Information Officer for the “2026 WNS Rig Move Incident” and the senior vice president of external affairs said Doyon Drilling, also know as DDI, is “cooperating fully with agencies and is leading response continuity.”
The closest gas infrastructure was not impacted, the report said. That infrastructure was about 50 feet away, according to the Alaska Department of Environmental Conservation report.
And no impacts to wildlife have been reported, however, “the site is less than 500 feet of a tributary to the Nechelik Channel of the Colville River. The spill area lies within critical habitat for denning and non-denning polar bears and habitat for caribou, Arctic fox, muskox, and ptarmigan,” the report said.
Eight people were treated and released from local clinics after the rig fell over, CoconoPhillips Alaska said.
In a release from Obed, Andrew Honea, Doyon’s president and General manager said, “DDI personnel were moving one of six modules of the rig during the incident, and we are grateful that all employees were accounted for immediately following the incident and that there were no serious injuries.”
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