HOLLENBECK

Oil · District 7C · Lease #18106

Operator: UPP OPERATING, LLC

Fields: SAWYER (LEONARD)

Cum Oil

1k BBL

Cum Gas

7k MCF

casinghead

Wells

1

Production

2012-08 — 2026-03

Peak Month

2012-09

Production History

Cum Oil: 1,469 BBL Cum Gas: 7,116 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

81 BBL/mo

Di (annual)

104.4%

b-factor

0.4

EUR

1,437 BBL

R-squared

0.669

type

hyperbolic

Operator History (from monthly production reports)

2019-04 — 2026-07 UPP OPERATING, LLC 88 mo

2014-10 — 2019-03 ENERVEST OPERATING, L.L.C. 54 mo

2012-08 — 2014-09 HIGHMOUNT EXPL & PROD TEXAS LLC 26 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1571	42-413-32848	UPP OPERATING, LLC	1	4,200	2012-06-18