BRASS MONKEY STATE UNIT

Oil · District 08 · Lease #49444

Operator: U.S. ENERGY DEVELOPMENT CORP

Cum Oil

564k BBL

Cum Gas

1.8M MCF

casinghead

Wells

8

Production

2017-11 — 2026-04

Peak Month

2017-12

Production History

Cum Oil: 563,595 BBL Cum Gas: 1,821,168 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

14,691 BBL/mo

Di (annual)

81.9%

b-factor

0.6

EUR

475,966 BBL

R-squared

0.425

type

hyperbolic

Operator History (from monthly production reports)

2025-04 — 2026-07 U.S. ENERGY DEVELOPMENT CORP 16 mo
2017-11 — 2025-03 COG OPERATING LLC 89 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
802HRU.S. ENERGY DEVELOPMENT CORP111,0002017-08-03
801HU.S. ENERGY DEVELOPMENT CORP111,0002017-04-07
804HU.S. ENERGY DEVELOPMENT CORP110,9002017-04-07
805HU.S. ENERGY DEVELOPMENT CORP110,9002017-04-07
851HU.S. ENERGY DEVELOPMENT CORP110,7002017-04-07
852HU.S. ENERGY DEVELOPMENT CORP111,0002017-04-07
853HU.S. ENERGY DEVELOPMENT CORP110,7002017-04-07
874HU.S. ENERGY DEVELOPMENT CORP112,0002017-04-07