UNDERWOOD 34-138 UNIT

Oil · District 08 · Lease #42457

Operator: ANADARKO PETROLEUM CORPORATION

Cum Oil

111k BBL

Cum Gas

147k MCF

casinghead

Wells

1

Production

2011-07 — 2016-10

Peak Month

2011-12

Production History

Cum Oil: 111,338 BBL Cum Gas: 147,308 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,534 BBL/mo

Di (annual)

23.3%

b-factor

0.0

EUR

130,728 BBL

R-squared

0.362

type

exponential

Operator History (from monthly production reports)

2013-04 — 2018-07 ANADARKO E&P ONSHORE LLC 64 mo
2011-07 — 2013-03 ANADARKO PETROLEUM CORPORATION 21 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HANADARKO E&P ONSHORE LLC216,0002017-02-17