Santos Confirms North Slope Oil Discovery at Quokka-1, Eyes Major Nanushuk Development
According to World Oil, Santos has reported a successful appraisal at its Quokka-1 well on Alaska’s North Slope, confirming high-quality Nanushuk reservoir rock and advancing development planning at the Quokka Unit alongside partner Repsol.
North Slope Discovery Adds to Growing Alaska Portfolio
The Quokka-1 well, drilled to 4,787 ft, encountered approximately 143 ft of net oil pay with average porosity of 19%. After a single-stage fracture stimulation, the well flowed at 2,190 bpd of light oil. Santos holds a 51% operating interest in the well; Repsol holds the remaining 49%.
Reservoir sands correlate with the nearby Mitquq-1 discovery drilled in 2020, about six miles away, and fluid analysis confirmed light oil with favorable pricing expectations. As of year-end 2025, the Quokka Unit held 2C contingent resources of 177 MMboe. Santos is planning a two-drill-site development with production capacity expected to be comparable to its Pikka Phase 1 project, which targets plateau production of 80,000 bpd and is now mechanically complete with first oil expected within weeks.
“The Quokka-1 results demonstrate the quality of the Nanushuk reservoir and support our view of this as a material addition to our Alaska portfolio,” said Santos CEO Kevin Gallagher.
Santos also plans a 3D seismic survey over the Quokka area during the 2026-2027 winter season to refine reservoir characterization ahead of a development decision.
What It Means for Subcontractors
- Permitting is already moving. Santos has initiated development planning and key permitting activities now, meaning the procurement and contractor selection cycle for Quokka could open sooner than the project’s scale suggests. Field service companies should track Bureau of Land Management and Alaska state permit filings.
- Pikka Phase 1 is the near-term opportunity. With 24 development wells drilled and 20 frac’d at Pikka, and first oil imminent, well intervention, production testing, and facility commissioning subcontractors are needed on the North Slope right now, not years from now.
- Winter logistics positioning matters. The 2026-2027 seismic campaign over Quokka means ice road transport, camp services, and survey support contracts will be coming to market this year. Companies with North Slope winter ops experience should engage Santos and its prime contractors early.
- Scale your Alaska footprint now. North Slope work rewards contractors already registered, insured, and certified for Arctic conditions. The window between appraisal success and development FID is the right time to build relationships, not after the drilling program is announced.
