VOGLER "6"

Oil · District 08 · Lease #40533

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

157k BBL

Cum Gas

167k MCF

casinghead

Wells

3

Production

2010-09 — 2026-04

Peak Month

2012-03

Production History

Cum Oil: 156,597 BBL Cum Gas: 167,462 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,575 BBL/mo

Di (annual)

70.7%

b-factor

1.4

EUR

225,685 BBL

R-squared

0.870

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

2010-09 — 2019-05 PIONEER NATURAL RES. USA, INC. 105 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
3	42-317-36586	OVINTIV USA INC.	1	11,700	2011-03-14
2	42-317-36073	OVINTIV USA INC.	2	11,400	2010-06-11
1	42-317-36072	OVINTIV USA INC.	1	11,400	2010-06-07