BUTCHEE "21"

Oil · District 08 · Lease #39147

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

477k BBL

Cum Gas

378k MCF

casinghead

Wells

7

Production

2008-11 — 2025-11

Peak Month

2013-09

Production History

Cum Oil: 476,578 BBL Cum Gas: 378,205 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,220 BBL/mo

Di (annual)

20.5%

b-factor

0.2

EUR

378,159 BBL

R-squared

0.818

type

hyperbolic

Operator History (from monthly production reports)

2023-06 — 2026-07 OVINTIV USA INC. 38 mo
2017-06 — 2023-05 PETROLEGACY ENERGY II, LLC 72 mo
2008-11 — 2017-05 PIONEER NATURAL RES. USA, INC. 103 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7OVINTIV USA INC.111,7002013-06-19
4OVINTIV USA INC.111,9002012-11-14
8OVINTIV USA INC.111,8002012-07-31
6OVINTIV USA INC.112,0002011-11-22
3OVINTIV USA INC.111,1002011-01-10
2OVINTIV USA INC.111,3002010-06-16
1OVINTIV USA INC.19,8002008-06-28