# Alaska Online Public Notices #MLUPCI-25-001

Permit modification notice for Explor Geoscience’s approximately 20-mile Western Cook Inlet 2D seismic survey

**Posted:** October 07, 2026
**Respond By:** October 21, 2026
**Identifier:** MLUPCI-25-001
**NAICS:** 541360

The State of Alaska is considering a permit modification for Explor Geoscience USA, Inc.’s Western Cook Inlet 2D seismic exploration project.
- **Government buyer:** State of Alaska, Department of Natural Resources, Division of Oil & Gas.
- **Applicant/service provider:** Explor Geoscience USA, Inc. (Explor).
- **OEM:** **Sercel** — ACCEL receiver nodes.
- **Proposed work:** Approximately 20 miles of 2D seismic data acquisition, with one of two alternatives to be conducted:
  - Preferred: Extend two survey lines at Stump Lake—Line 1A by 6.1 miles and Line 1C by 3.6 miles.
  - Alternative: Conduct the approved survey across the Stump Lake and Beluga River areas.
- **Equipment and methods:** Sercel ACCEL receiver nodes are planned at 33-foot intervals. Explor’s mini-hole dynamite source uses a portable hand drill to make roughly five-foot-deep holes, with 130-gram or 230-gram explosive charges placed at 66-foot intervals.
- **Notable requirements and impacts:** Field operations are planned on foot, with trucks supporting access along existing roads and trails. Receiver nodes are placed on the ground without disturbing it; drill cuttings are used to plug source holes.
- **Opportunity context:** This is a public notice inviting comments on a permit modification, not a solicitation for equipment or services. No product quantities or contract value are provided.

### Description

Explor Geoscience USA, Inc. requests modification of its previously approved Geophysical Exploration Permit MLUPCI 25-001 for a 2D seismic survey in the Western Cook Inlet area. The modification would extend the survey lines by approximately 9.7 miles, bringing the two lines to a total length of approximately 20 miles; the original survey intent and procedures would remain unchanged. The application describes two possible survey options, of which only one would be carried out. Written comments are due by 4:30 PM Alaska Daylight Time on October 21, 2026.

[View original listing](https://aws.state.ak.us/OnlinePublicNotices/notices/View.aspx?id=225408)