Three Crown Petroleum Announces Significant Progress in its Powder River Basin Drilling Program with Initial Production from 22,500-Foot Niobrara Horizontal Well and Expansion of Development Program

The Irvine 1NH well was recently completed and began producing on October 14^th

Expansion of the 2025 - 2026 drilling program announced across Johnson, Campbell, and Converse Counties with two additional wells expected to spud in November 2025

Three Crown is actively seeking reliable partners to participate in its Niobrara and Mowry drilling program for the remainder of 2025 and throughout 2026, including the Irvine 1NH Well.

STEAMBOAT SPRINGS, Colo., Oct. 15, 2025 /PRNewswire/ -- Three Crown Petroleum LLC ("Three Crown" or the "Company") a Colorado-based oil and gas exploration and production company, today announced significant progress in its Powder River Basin horizontal drilling program with the completion of its Irvine 1NH well in Johnson County, Wyoming. The well was drilled to approximately 22,500 feet and completed in the highly prospective Niobrara horizon. The Irvine 1NH well featured a two-mile horizontal leg and was completed with 51 frac stages spaced approximately 200 feet apart. The well began producing on October 14, 2025.

"The successful completion of the Irvine 1NH represents a significant milestone for Three Crown and validates our technical analysis and approach to developing our acreage position in the Powder River Basin," said H. Howard Cooper, President and Manager of Three Crown Petroleum LLC. "We're excited to bring this well online and continue our momentum with an aggressive drilling program through 2026."

Upcoming Wells and Development Program

Following the Irvine 1NH completion, Three Crown plans to spud the Kringen 1NH and Wild Bill 1NH Niobrara wells in Converse County, WY in November 2025. Each well is designed as a 2.5-mile lateral located east of Bill, Wyoming.

Three Crown currently holds eleven additional Niobrara and Mowry drilling permits across Johnson, Campbell, and Converse Counties.

Partnership Opportunities

The Company is actively seeking reliable partners to participate in its Niobrara and Mowry drilling program for the remainder of 2025 and throughout 2026. Investment opportunities include, but are not limited to, the Irvine 1NH well that began production on October 14^th. Detailed information about the company's prospects and spacing units is available at www.threecrownpetroleum.com under the Prospects section.

Forward-Looking Statements

This release contains forward-looking statements that are based on current expectations and assumptions. Actual results may differ materially from those expressed or implied due to a variety of factors including commodity price volatility, operational risks, regulatory changes, and other variables. Three Crown Petroleum undertakes no obligation to update these statements except as required by law.

About Three Crown Petroleum LLC

Three Crown Petroleum LLC is a Colorado-based oil and gas company focused on horizontal drilling in Wyoming's Powder River Basin. The company leases oil and gas mineral rights and develops wells in proven producing geological areas across Johnson, Campbell, and Converse Counties. Three Crown's technical team specializes in evaluating drilling prospects, securing permits, organizing drilling operations, and negotiating off-take contracts.

Contact:

H. Howard Cooper
President and Manager
Three Crown Petroleum LLC
(970) 756-4747
[email protected]
www.threecrownpetroleum.com

SOURCE Three Crown Petroleum LLC