BARTZ 19C

Oil · District 10 · Lease #9033

Operator: TAPSTONE ENERGY, LLC

Cum Oil

61k BBL

Cum Gas

451k MCF

casinghead

Wells

1

Production

2014-03 — 2026-04

Peak Month

2014-05

Production History

Cum Oil: 60,700 BBL Cum Gas: 450,590 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,799 BBL/mo

Di (annual)

116.7%

b-factor

0.5

EUR

55,675 BBL

R-squared

0.873

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
2014-03 — 2014-12 APACHE CORPORATION 10 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2219HFORMENTERA OPERATIONS LLC111,2002013-11-19