KEY WEST WATERFLOOD UNIT

Oil // district 11 // lease#66640

op: R K PETROLEUM CORP.

cum_oil

736k BBL

cum_gas

0 MCF

wells

18

production

1993-01 — 2026-03

peak_month

1993-10

-- production_history

cum_oil: 735,645 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

12,591 BBL/mo

Di (annual)

82.2%

b-factor

0.8

EUR

538,053 BBL

R-squared

0.865

type

hyperbolic

-- wells (18)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2002R K PETROLEUM CORPORATION18,0001991-07-31
1401R K PETROLEUM CORPORATION28,0001991-07-12
801R K PETROLEUM CORPORATION39,0001991-02-11
501R K PETROLEUM CORPORATION19,0001985-09-20
601R K PETROLEUM CORPORATION18,0001985-04-29
1901HENRY PETROLEUM CORP.17,9001984-11-26
1601R K PETROLEUM CORPORATION18,0001984-10-11
1601WR K PETROLEUM CORPORATION18,0001984-10-11
1701R K PETROLEUM CORPORATION18,0001984-07-09
2201HENRY PETROLEUM CORP.27,9001984-01-25
1301HILLIARD OIL & GAS, INC.17,9001983-11-21
1301WHILLIARD OIL & GAS, INC.17,9001983-11-21
101HILLIARD OIL & GAS, INC.17,9001983-06-27
1501HILLIARD OIL & GAS, INC.18,3001983-02-18
2001HILLIARD OIL & GAS, INC.211,6161982-12-31
901HILLIARD OIL & GAS, INC.18,5001982-12-21
901WHILLIARD OIL & GAS, INC.18,5001982-12-21
1001HILLIARD OIL & GAS, INC.110,0001982-10-05
EOF // data source: Texas Railroad Commission // 2026