STILES 18A

Oil · District 10 · Lease #9024

Operator: TAPSTONE ENERGY, LLC

Cum Oil

127k BBL

Cum Gas

468k MCF

casinghead

Wells

1

Production

2013-09 — 2026-04

Peak Month

2013-10

Production History

Cum Oil: 126,966 BBL Cum Gas: 468,223 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,025 BBL/mo

Di (annual)

278.7%

b-factor

0.7

EUR

111,581 BBL

R-squared

0.835

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
2013-09 — 2014-12 APACHE CORPORATION 16 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1818HFORMENTERA OPERATIONS LLC111,0002013-07-05