Mark 4-9F #8TFH | API # 33-105-04221

Well Summary
Well Name: Mark 4-9F #8TFH
API #: 33-105-04221
Operator: Devon Energy Williston, L.L.C
County: Williams County, ND
Production Dates on File: January 2019 to October 2025

547 Barrels of Oil Produced in Oct 2025

5.5 k MCF of Gas Produced in Oct 2025

Map of Mark 4-9F #8TFH
Mark 4-9F #8TFH Well Details
Well NameMark 4-9F #8TFH API No.33-105-04221 Well DirectionH
OperatorDEVON ENERGY WILLISTON, L.L.C Lease No. Field / Formation
Well StatusActive Well TypeOil & Gas Township Range Section154 N 100 W 4
Derrick ElevationMembers Only Kelly Bushing ElevationMembers Only Drillers Total DepthMembers Only True Total DepthMembers Only
CountyWilliams County, ND Closest CityWilliston Latitude / Longitude48.196497, -103.557607
Permit DateMembers Only Spud DateMembers Only Completion DateMembers Only Plug DateMembers Only
Oct 2025 Oil ProdMembers Only Oct 2025 Gas ProdMembers Only Total Oil ProdMembers Only Total Gas ProdMembers Only
First Production Date on FileJanuary 2019 Most Recent Production Date on FileOctober 2025
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