MASSEY A UNIT

Oil · District 08 · Lease #54985

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

2.1M BBL

Cum Gas

3.4M MCF

casinghead

Wells

3

Production

2020-03 — 2026-04

Peak Month

2020-04

Production History

Cum Oil: 2,088,535 BBL Cum Gas: 3,449,590 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

68,756 BBL/mo

Di (annual)

54.0%

b-factor

0.2

EUR

1,909,957 BBL

R-squared

0.819

type

hyperbolic

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo
2020-03 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 11 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2809HPIONEER NATURAL RES. USA, INC.424,5002019-01-29
4209HPIONEER NATURAL RES. USA, INC.425,0002019-01-29
4309HPIONEER NATURAL RES. USA, INC.425,3002019-01-29