COWDEN 40 -B-

Oil // district 10 // lease#23961

op: QUAY VALLEY, INC.

cum_oil

493k BBL

cum_gas

0 MCF

wells

6

production

1993-01 — 2026-03

peak_month

2014-08

-- production_history

cum_oil: 492,725 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

8,267 BBL/mo

Di (annual)

29.2%

b-factor

0.1

EUR

377,588 BBL

R-squared

0.968

type

hyperbolic

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8PIONEER NATURAL RES. USA, INC.112,0002013-10-03
7PIONEER NATURAL RES. USA, INC.110,6002007-03-14
5MLC CO., INC.18,9001989-09-13
6MLC CO., INC.18,9001989-09-13
342-329-30385--------
442-329-30376--------
EOF // multi-state drilling data platform // 2026