MUSTANG WEST C 8-27

Oil · District 7C · Lease #21401

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

541k BBL

Cum Gas

3.3M MCF

casinghead

Wells

2

Production

2021-08 — 2026-04

Peak Month

2021-10

Production History

Cum Oil: 541,441 BBL Cum Gas: 3,280,755 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

15,076 BBL/mo

Di (annual)

47.0%

b-factor

0.0

EUR

385,078 BBL

R-squared

0.427

type

exponential

Operator History (from monthly production reports)

2021-08 — 2026-07 PIONEER NATURAL RES. USA, INC. 60 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4203HPIONEER NATURAL RES. USA, INC.19,7102021-03-02
4403HPIONEER NATURAL RES. USA, INC.19,7102021-03-02