SCHWERTNER "9"

Oil · District 08 · Lease #38702

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

22k BBL

Cum Gas

57k MCF

casinghead

Wells

1

Production

2007-10 — 2019-10

Peak Month

2008-01

Production History

Cum Oil: 22,470 BBL Cum Gas: 56,959 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

634 BBL/mo

Di (annual)

85.6%

b-factor

1.0

EUR

33,594 BBL

R-squared

0.850

type

hyperbolic

Operator History (from monthly production reports)

2019-11 — 2022-04 DIAMONDBACK E&P LLC 30 mo
2007-10 — 2019-10 PIONEER NATURAL RES. USA, INC. 145 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC110,5002007-07-26