COLONIAL J 1-12

Oil · District 08 · Lease #55155

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

307k BBL

Cum Gas

993k MCF

casinghead

Wells

2

Production

2020-07 — 2026-04

Peak Month

2021-03

Production History

Cum Oil: 306,848 BBL Cum Gas: 992,957 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

35,496 BBL/mo

Di (annual)

473.0%

b-factor

0.9

EUR

405,568 BBL

R-squared

0.925

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2020-07 — 2021-05 DE3 OPERATING LLC 11 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2810HPIONEER NATURAL RES. USA, INC.39,0002020-05-14
4310HPIONEER NATURAL RES. USA, INC.29,5002020-05-14