STILES 18B

Oil · District 10 · Lease #9235

Operator: TAPSTONE ENERGY, LLC

Cum Oil

73k BBL

Cum Gas

424k MCF

casinghead

Wells

1

Production

2014-09 — 2026-04

Peak Month

2014-11

Production History

Cum Oil: 72,700 BBL Cum Gas: 424,474 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,486 BBL/mo

Di (annual)

152.2%

b-factor

0.4

EUR

84,820 BBL

R-squared

0.914

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 FORMENTERA OPERATIONS LLC 62 mo
2015-01 — 2021-05 TAPSTONE ENERGY, LLC 77 mo
2014-09 — 2014-12 APACHE CORPORATION 4 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2018HFORMENTERA OPERATIONS LLC111,0002014-05-01