MARY

Oil · District 7C · Lease #15535

Operator: HENRY PETROLEUM LP

Cum Oil

661k BBL

Cum Gas

2.1M MCF

casinghead

Wells

8

Production

2004-06 — 2026-04

Peak Month

2016-03

Production History

Cum Oil: 660,659 BBL Cum Gas: 2,102,310 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,294 BBL/mo

Di (annual)

23.3%

b-factor

0.0

EUR

375,024 BBL

R-squared

0.592

type

exponential

Operator History (from monthly production reports)

2009-01 — 2026-07 COG OPERATING LLC 211 mo
2004-06 — 2008-12 HENRY PETROLEUM LP 55 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
212HCOG OPERATING LLC112,0002014-10-01
5COG OPERATING LLC112,0002014-08-20
211HCOG OPERATING LLC112,0002013-07-25
3ACOG OPERATING LLC111,0002010-08-10
4COG OPERATING LLC111,0002010-05-27
3COG OPERATING LLC110,8002004-06-17
2COG OPERATING LLC110,8002004-06-16
1COG OPERATING LLC110,6002004-04-05