ESTELL, MARY KING

Oil // district 4 // lease#13498

op: DURANGO RESOURCES CORP.

cum_oil

49k BBL

cum_gas

0 MCF

wells

26

production

2008-11 — 2026-03

peak_month

2019-05

-- production_history

cum_oil: 49,343 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,339 BBL/mo

Di (annual)

556.4%

b-factor

1.0

EUR

40,685 BBL

R-squared

0.807

type

hyperbolic

-- wells (26)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HDURANGO RESOURCES CORP.15,6202018-11-26
2HDURANGO RESOURCES CORP.15,6502018-11-26
B 10DURANGO RESOURCES CORP.16,0002016-06-20
B 35DURANGO RESOURCES CORP.16,5002014-03-05
A 14SYNERGY OIL & GAS, INC. (A)25,7102007-06-25
B 2SUN EXPLORATION & PRODUCTION CO.25,6501995-01-18
B 3KAMLOK OIL & GAS, INC.45,4071994-09-26
B 18KAMLOK OIL & GAS, INC.15,6541993-02-12
A 16SUN EXPL. & PROD. CO.-HOUSTON26,5001991-01-18
B 29KAMLOK, INC.16,4101989-06-12
B 16SUN EXPL. & PROD. CO.-HOUSTON36,3751989-06-01
B 21SUN EXPL. & PROD. CO.-HOUSTON25,6571981-09-02
B 24SUN EXPLORATION & PRODUCTION CO.15,7501981-03-27
B 15SUN EXPL. & PROD. CO.-HOUSTON16,3901979-07-05
1442-355-00077--------
A 1542-355-30636--------
B 1442-355-00147--------
B 3042-355-30296--------
B 3342-355-30484--------
B 3442-355-30537--------
C 1042-355-00108--------
C 1542-355-00113--------
C 2042-355-00118--------
C 2342-355-30520--------
C 2542-355-81614--------
C 2642-355-30556--------
EOF // data source: Texas Railroad Commission // 2026