ULS 5-35

Oil · District 08 · Lease #40316

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

261k BBL

Cum Gas

532k MCF

casinghead

Wells

8

Production

2010-05 — 2025-02

Peak Month

2012-05

Production History

Cum Oil: 261,195 BBL Cum Gas: 532,484 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,709 BBL/mo

Di (annual)

22.7%

b-factor

0.0

EUR

249,090 BBL

R-squared

0.685

type

exponential

Operator History (from monthly production reports)

2023-06 — 2026-07 OVINTIV USA INC. 38 mo
2016-12 — 2023-05 PIEDRA OPERATING, LLC 78 mo
2016-09 — 2016-11 PIONEER NATURAL RES. USA, INC. 3 mo
2010-05 — 2016-08 DEVON ENERGY PRODUCTION CO, L.P. 76 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7OVINTIV USA INC.111,5002011-12-01
8OVINTIV USA INC.111,5002011-10-10
3OVINTIV USA INC.211,4002010-07-30
5OVINTIV USA INC.211,5002010-07-28
2OVINTIV USA INC.211,5002010-01-12
4OVINTIV USA INC.211,5002010-01-08
6OVINTIV USA INC.211,5002010-01-08
1OVINTIV USA INC.211,5002010-01-07