RICHEY "54A"

Oil // district 9 // lease#8486

op: PIONEER NATURAL RES. USA, INC.

cum_oil

33k BBL

cum_gas

0 MCF

wells

11

production

1993-01 — 2026-03

peak_month

2007-02

-- production_history

cum_oil: 33,209 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

612 BBL/mo

Di (annual)

89.6%

b-factor

0.8

EUR

24,366 BBL

R-squared

0.916

type

hyperbolic

-- wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10PIONEER NATURAL RES. USA, INC.27,2002007-07-05
12PIONEER NATURAL RES. USA, INC.17,2002006-05-11
11PIONEER NATURAL RES. USA, INC.17,1002006-04-20
9PIONEER NATURAL RES. USA, INC.17,1002006-03-29
8INDIAN WELLS OIL COMPANY17,4001982-03-10
7INDIAN WELLS OIL COMPANY17,4001982-01-25
6INDIAN WELLS OIL COMPANY17,4001981-11-30
5INDIAN WELLS OIL COMPANY17,4001981-01-22
4INDIAN WELLS OIL COMPANY17,4001981-01-21
3INDIAN WELLS OIL COMPANY17,4001980-11-05
2INDIAN WELLS OIL COMPANY17,3001980-02-05
EOF // multi-state drilling data platform // 2026