SHACKELFORD W40C

Oil · District 08 · Lease #54915

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

332k BBL

Cum Gas

1.4M MCF

casinghead

Wells

1

Production

2020-04 — 2026-04

Peak Month

2020-12

Production History

Cum Oil: 332,262 BBL Cum Gas: 1,440,493 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

25,601 BBL/mo

Di (annual)

260.9%

b-factor

0.8

EUR

405,388 BBL

R-squared

0.917

type

hyperbolic

Operator History (from monthly production reports)

2020-04 — 2026-07 PIONEER NATURAL RES. USA, INC. 76 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HPIONEER NATURAL RES. USA, INC.110,3252019-11-14