ABBY

Oil · District 7C · Lease #16774

Operator: COG OPERATING LLC

Cum Oil

214k BBL

Cum Gas

582k MCF

casinghead

Wells

5

Production

2008-11 — 2025-06

Peak Month

2010-12

Production History

Cum Oil: 214,152 BBL Cum Gas: 581,911 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,843 BBL/mo

Di (annual)

39.6%

b-factor

0.2

EUR

182,997 BBL

R-squared

0.887

type

hyperbolic

Operator History (from monthly production reports)

2008-11 — 2026-07 COG OPERATING LLC 213 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4521COG OPERATING LLC110,8002012-05-18
4501COG OPERATING LLC110,8002010-06-15
4505COG OPERATING LLC110,8002010-06-15
4513COG OPERATING LLC110,8002008-10-22
4509COG OPERATING LLC110,8002008-06-28