MARY 18-7A-A

Oil · District 7C · Lease #19446

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

522k BBL

Cum Gas

1.5M MCF

casinghead

Wells

1

Production

2016-12 — 2026-04

Peak Month

2017-01

Production History

Cum Oil: 521,725 BBL Cum Gas: 1,532,931 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,246 BBL/mo

Di (annual)

21.1%

b-factor

0.0

EUR

469,512 BBL

R-squared

0.427

type

exponential

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo
2016-12 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 50 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4401HPIONEER NATURAL RES. USA, INC.210,0202016-04-04