SHACKELFORD 31-26E

Oil · District 08 · Lease #63510

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

216k BBL

Cum Gas

607k MCF

casinghead

Wells

1

Production

2025-06 — 2026-04

Peak Month

2026-03

Production History

Cum Oil: 216,240 BBL Cum Gas: 606,534 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

43,640 BBL/mo

Di (annual)

361.0%

b-factor

0.6

EUR

347,860 BBL

R-squared

0.957

type

hyperbolic

Operator History (from monthly production reports)

2025-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 14 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
105HPIONEER NATURAL RES. USA, INC.110,6102024-10-17