SHACKELFORD E10A

Oil · District 08 · Lease #52279

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

281k BBL

Cum Gas

3.0M MCF

casinghead

Wells

1

Production

2019-02 — 2026-04

Peak Month

2020-06

Production History

Cum Oil: 280,596 BBL Cum Gas: 3,031,637 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

25,439 BBL/mo

Di (annual)

191.9%

b-factor

0.4

EUR

264,417 BBL

R-squared

0.882

type

hyperbolic

Operator History (from monthly production reports)

2019-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 90 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
101HPIONEER NATURAL RES. USA, INC.110,6602018-09-05