ROBB 'A'

Oil · District 08 · Lease #43448

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

170k BBL

Cum Gas

500k MCF

casinghead

Wells

8

Production

2012-11 — 2024-02

Peak Month

2013-12

Production History

Cum Oil: 169,513 BBL Cum Gas: 499,940 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,734 BBL/mo

Di (annual)

31.8%

b-factor

0.0

EUR

141,051 BBL

R-squared

0.880

type

exponential

Operator History (from monthly production reports)

2012-11 — 2026-07 PIONEER NATURAL RES. USA, INC. 165 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8PIONEER NATURAL RES. USA INC.110,7852014-07-07
6PIONEER NATURAL RES. USA INC.110,6002014-05-31
5PIONEER NATURAL RES. USA INC.110,6002014-03-03
4PIONEER NATURAL RES. USA INC.110,6852013-09-17
3PIONEER NATURAL RES. USA INC.110,8002013-06-28
7PIONEER NATURAL RES. USA INC.210,7502013-06-27
2PIONEER NATURAL RES. USA INC.111,2502013-03-01
1PIONEER NATURAL RES. USA INC.111,5002012-07-18