TUMBLER STATE C

Oil · District 08 · Lease #53102

Operator: U.S. ENERGY DEVELOPMENT CORP

Cum Oil

246k BBL

Cum Gas

916k MCF

casinghead

Wells

1

Production

2019-08 — 2026-04

Peak Month

2019-09

Production History

Cum Oil: 246,164 BBL Cum Gas: 915,816 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

23,518 BBL/mo

Di (annual)

557.1%

b-factor

1.2

EUR

415,175 BBL

R-squared

0.972

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
1804HRU.S. ENERGY DEVELOPMENT CORP111,0002018-10-09