SHACKELFORD E39E

Oil · District 08 · Lease #52830

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

349k BBL

Cum Gas

1.5M MCF

casinghead

Wells

1

Production

2019-09 — 2026-04

Peak Month

2019-10

Production History

Cum Oil: 348,765 BBL Cum Gas: 1,484,042 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

29,063 BBL/mo

Di (annual)

167.4%

b-factor

0.5

EUR

407,270 BBL

R-squared

0.912

type

hyperbolic

Operator History (from monthly production reports)

2019-09 — 2026-07 PIONEER NATURAL RES. USA, INC. 83 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
105HPIONEER NATURAL RES. USA, INC.110,6002019-02-11