TUBB-VAUGHN 21I

Oil · District 08 · Lease #58221

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

285k BBL

Cum Gas

713k MCF

casinghead

Wells

1

Production

2022-10 — 2026-04

Peak Month

2023-08

Production History

Cum Oil: 284,921 BBL Cum Gas: 713,233 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

21,223 BBL/mo

Di (annual)

116.8%

b-factor

0.0

EUR

218,236 BBL

R-squared

0.944

type

exponential

Operator History (from monthly production reports)

2022-10 — 2026-07 PIONEER NATURAL RES. USA, INC. 46 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
109HPIONEER NATURAL RES. USA, INC.19,6252022-03-22