RICHEY "55"

Oil · District 7C · Lease #16016

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

6k BBL

Cum Gas

79k MCF

casinghead

Wells

2

Production

2006-05 — 2013-10

Peak Month

2007-06

Production History

Cum Oil: 5,534 BBL Cum Gas: 79,099 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

299 BBL/mo

Di (annual)

80.6%

b-factor

0.1

EUR

4,924 BBL

R-squared

0.706

type

hyperbolic

Operator History (from monthly production reports)

2006-05 — 2015-07 PIONEER NATURAL RES. USA, INC. 111 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9PIONEER NATURAL RES. USA INC.17,5002006-09-01
7PIONEER NATURAL RES. USA INC.17,1752006-03-23