VOGLER "13"

Oil · District 08 · Lease #40465

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

199k BBL

Cum Gas

252k MCF

casinghead

Wells

3

Production

2010-08 — 2026-04

Peak Month

2012-04

Production History

Cum Oil: 199,353 BBL Cum Gas: 251,687 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,493 BBL/mo

Di (annual)

24.2%

b-factor

0.5

EUR

212,004 BBL

R-squared

0.867

type

hyperbolic

Operator History (from monthly production reports)

2023-06 — 2026-07 OVINTIV USA INC. 38 mo

2019-06 — 2023-05 BLACK SWAN OPERATING, LLC 48 mo

2010-08 — 2019-05 PIONEER NATURAL RES. USA, INC. 106 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
3	42-317-36643	OVINTIV USA INC.	1	11,700	2011-04-14
2	42-317-36078	OVINTIV USA INC.	2	11,500	2010-06-14
1	42-317-35830	OVINTIV USA INC.	1	11,500	2010-02-04