KEYSTONE CATTLE CO.

Oil // district 10 // lease#1422

op: PENNZOIL PETROLEUM COMPANY

fields: FLYING -W-

cum_oil

413k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2026-03

peak_month

1993-12

-- production_history

cum_oil: 412,752 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,064 BBL/mo

Di (annual)

6.3%

b-factor

0.2

EUR

419,950 BBL

R-squared

0.664

type

hyperbolic

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
213LEGACY RESERVES OPERATING LP311,7772017-06-12
192LEGACY RESERVES OPERATING LP210,5352017-04-10
377LEGACY RESERVES OPERATING LP39,9502009-01-16
376LEGACY RESERVES OPERATING LP211,9002008-11-26
146PENNZOIL EXPLORATION & PROD. CO.29,8002003-07-22
372CHEVRON U. S. A. INC.110,1801985-03-14
315GULF OIL CORP.111,7701980-11-10
EOF // multi-state drilling data platform // 2026