COPELAND 27

Oil · District 08 · Lease #40478

Operator: MARINER ENERGY, INC.

Cum Oil

212k BBL

Cum Gas

2.1M MCF

casinghead

Wells

7

Production

2010-09 — 2026-04

Peak Month

2014-04

Production History

Cum Oil: 212,227 BBL Cum Gas: 2,123,227 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,090 BBL/mo

Di (annual)

126.3%

b-factor

0.5

EUR

149,058 BBL

R-squared

0.840

type

hyperbolic

Operator History (from monthly production reports)

2010-12 — 2026-07 APACHE CORPORATION 188 mo
2010-09 — 2010-11 MARINER ENERGY, INC. 3 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11APACHE CORPORATION111,0002013-09-10
10APACHE CORPORATION111,0002013-05-02
9APACHE CORPORATION111,0002012-10-01
6APACHE CORPORATION210,9002012-05-16
5APACHE CORPORATION110,9002012-04-02
2APACHE CORPORATION111,0002011-10-14
1APACHE CORPORATION211,0002011-04-27