Lease Summary
Lease Name: Sumpter 5-8
Operator: Montalban Oil & Gas Operations, Inc.
County: Toole County, MT
Production Dates on File: January 2001 to November 2025

1 Total Wells

127 MCF of Gas Produced in Nov 2025

Map of Wells Associated with Sumpter 5-8
Wells Associated With Sumpter 5-8
Production Based on November 2025 Data
API # Well Name Status Spud Date Completion Date Gas Production
# 25-101-23122 Sumpter (1-2036-1) 5-18 Producing 1987-05-04