VOGLER '15'

Oil · District 08 · Lease #42990

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

111k BBL

Cum Gas

174k MCF

casinghead

Wells

3

Production

2012-05 — 2026-04

Peak Month

2012-07

Production History

Cum Oil: 111,314 BBL Cum Gas: 173,951 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,581 BBL/mo

Di (annual)

135.5%

b-factor

1.4

EUR

153,286 BBL

R-squared

0.915

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

2012-05 — 2019-05 PIONEER NATURAL RES. USA, INC. 85 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-317-38017	OVINTIV USA INC.	1	12,600	2012-08-29
3	42-317-37572	OVINTIV USA INC.	1	12,700	2012-03-01
1	42-317-37538	OVINTIV USA INC.	1	11,600	2012-02-18