LOCK MASTER STATE B

Oil · District 08 · Lease #53210

Operator: U.S. ENERGY DEVELOPMENT CORP

Cum Oil

172k BBL

Cum Gas

535k MCF

casinghead

Wells

1

Production

2019-08 — 2026-04

Peak Month

2019-09

Production History

Cum Oil: 172,131 BBL Cum Gas: 534,917 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

13,933 BBL/mo

Di (annual)

579.2%

b-factor

1.3

EUR

282,728 BBL

R-squared

0.942

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
1706HU.S. ENERGY DEVELOPMENT CORP111,0002018-06-29