ROBBINS "1"

Oil · District 7C · Lease #17739

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

290k BBL

Cum Gas

577k MCF

casinghead

Wells

3

Production

2011-11 — 2026-04

Peak Month

2013-03

Production History

Cum Oil: 289,561 BBL Cum Gas: 577,100 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,713 BBL/mo

Di (annual)

30.3%

b-factor

0.3

EUR

262,057 BBL

R-squared

0.545

type

hyperbolic

Operator History (from monthly production reports)

2011-11 — 2026-07 PIONEER NATURAL RES. USA, INC. 177 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA, INC.110,4002012-08-09
2PIONEER NATURAL RES. USA, INC.110,0002011-11-18
1PIONEER NATURAL RES. USA, INC.110,0002011-07-29