COLONIAL O 1-12

Oil · District 08 · Lease #55117

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

528k BBL

Cum Gas

1.4M MCF

casinghead

Wells

2

Production

2020-09 — 2026-04

Peak Month

2021-02

Production History

Cum Oil: 528,033 BBL Cum Gas: 1,379,134 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

43,673 BBL/mo

Di (annual)

272.8%

b-factor

0.8

EUR

664,940 BBL

R-squared

0.981

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2020-09 — 2021-05 DE3 OPERATING LLC 9 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2815HPIONEER NATURAL RES. USA, INC.19,0002020-06-11
4215HPIONEER NATURAL RES. USA, INC.19,5002020-06-11