LOCK MASTER STATE A

Oil · District 08 · Lease #53209

Operator: U.S. ENERGY DEVELOPMENT CORP

Cum Oil

248k BBL

Cum Gas

710k MCF

casinghead

Wells

1

Production

2019-08 — 2026-04

Peak Month

2019-09

Production History

Cum Oil: 248,162 BBL Cum Gas: 710,082 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

41,257 BBL/mo

Di (annual)

838.1%

b-factor

1.0

EUR

359,138 BBL

R-squared

0.915

type

hyperbolic

Operator History (from monthly production reports)

2025-04 — 2026-07 U.S. ENERGY DEVELOPMENT CORP 16 mo
2019-08 — 2025-03 COG OPERATING LLC 68 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1755HU.S. ENERGY DEVELOPMENT CORP110,7002018-06-29