ROBBIE 17A-8-F

Oil · District 7C · Lease #20172

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

365k BBL

Cum Gas

1.1M MCF

casinghead

Wells

3

Production

2018-11 — 2026-04

Peak Month

2018-12

Production History

Cum Oil: 365,452 BBL Cum Gas: 1,059,042 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

19,212 BBL/mo

Di (annual)

132.6%

b-factor

0.7

EUR

468,742 BBL

R-squared

0.942

type

hyperbolic

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo
2018-11 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 27 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2811HPIONEER NATURAL RES. USA, INC.19,2372018-03-20
4CRESCENT ENERGY OPERATING, LLC110,4002013-05-02
2CRESCENT ENERGY OPERATING, LLC19,9002011-08-26