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Markham, Chester L. 18-1

Lease 1037277566 · Wilson County, Kansas · Sec 18 T28S R16E · DOR 228899

Gas2007–20262 wells
Operator
River Rock Operating, LLC
Cumulative (state figure)
139,768 MCF
First production
2007
Last production
2026
Location (PLSS)
Sec 18 T28S R16E

Monthly gas production

199 months filed with the Kansas Geological Survey, May 2007 to Apr 2026. Volumes are MCF at lease level — a lease can cover many wells, so this is not a well's output.

Total over the months shown
139,768 MCF
Months filed
199
Most wells in a month
1
MonthGas (MCF)Wells
Apr 2026151
Mar 20264111
Feb 20264351
Jan 20264481
Dec 20252671
Nov 2025551
Oct 20255091
Sep 20254751
Aug 20252161
Jul 20254841
Jun 20254551
May 20254371
Apr 20254341
Mar 20253061
Feb 20253201
Jan 20252701
Dec 20244371
Nov 20244121
Oct 20244581
Sep 20244511
Aug 20244961
Jul 20245781
Jun 20241721
May 20241631
Apr 20244361
Mar 20244551
Feb 20244561
Jan 20243731
Dec 20231861
Nov 20232341
Oct 20234471
Sep 20234601
Aug 20234811
Jul 20234971
Jun 20234611
May 20233981
Apr 20234111
Mar 20234311
Feb 20234361
Jan 20234931
Dec 20224981
Nov 20224821
Oct 20225321
Sep 20225281
Aug 20225611
Jul 20224571
Jun 20225091
May 20225601
Apr 20225481
Mar 20225621
Feb 20224661
Jan 20225701
Dec 20216131
Nov 20215591
Oct 20215991
Sep 20215831
Aug 20215961
Jul 20216101
Jun 20216041
May 20216311
Apr 20216171
Mar 20216421
Feb 20214511
Jan 20216801
Dec 20206841
Nov 20204111
Oct 20205091
Sep 20206721
Aug 20206941
Jul 20207031
Jun 20207021
May 20207121
Apr 20207001
Mar 20207381
Feb 20206741
Jan 20204551
Dec 20195581
Nov 20196931
Oct 20197281
Sep 20197121
Aug 20197351
Jul 20197291
Jun 20196961
May 20197691
Apr 20197621
Mar 20197771
Feb 20197041
Jan 20198041
Dec 20188281
Nov 20188531
Oct 20189311
Sep 20189271
Aug 20189821
Jul 20189841
Jun 20189441
May 20181,0091
Apr 20181,0211
Mar 20181,1421
Feb 20181,0111
Jan 20181,1241
Dec 20171,1071
Nov 20171,1721
Oct 20171,1371
Sep 20171,1601
Aug 20171,1911
Jul 20171,2031
Jun 20171,0471
May 20171,1391
Apr 20171,1871
Mar 20176181
Feb 20174071
Jan 20174661
Dec 20168351
Nov 20161,0171
Oct 20165701
Sep 20164691
Aug 20165161
Jul 20166481
Jun 20168881
May 20161,0591
Apr 20161,0551
Mar 20161,0681
Feb 20169611
Jan 20161,0311
Dec 20159581
Nov 20151,1011
Oct 20151,0551
Sep 20151,0331
Aug 20151,0361
Jul 20159621
Jun 20151,0351
May 20156791
Apr 20154411
Mar 20155151
Feb 20155001
Jan 20155511
Dec 20145451
Nov 20145351
Oct 20145811
Sep 20145401
Aug 20145751
Jul 20145801
Jun 20145661
May 20145971
Apr 20145061
Mar 20144591
Feb 20144911
Jan 20145051
Dec 20136241
Nov 20136661
Oct 20137131
Sep 20136801
Aug 20136691
Jul 20136611
Jun 20136411
May 20136701
Apr 20137151
Mar 20138141
Feb 20137791
Jan 20138751
Dec 20129051
Nov 20128301
Oct 20129301
Sep 20129421
Aug 20129511
Jul 20129631
Jun 20129061
May 20121,0011
Apr 20121,0681
Mar 20127761
Feb 20121,0021
Jan 20121,1051
Dec 20111,1381
Nov 20111,1451
Oct 20111,2361
Sep 20111,1431
Aug 20111,2761
Jul 20111,3131
Jun 20111,3151
May 20111,3981
Apr 20111,3851
Mar 20111,4401
Feb 20111,3701
Jan 20111,5601
Dec 20101,3531
Nov 20101,2221
Oct 20101,3021
Sep 20101,3381
Aug 20101,4441
Jul 20101,2401
Jun 20106461
Nov 200821
Oct 200821
Oct 2007201
Sep 2007161
Aug 20071511
Jul 2007431
Jun 2007941
May 2007991

Lease-level volumes as filed with the Kansas Geological Survey. A blank well count is a month the state filed no count for, not a month with no wells.

Wells on this lease

2 wells the state's well register assigns to this lease. Every one has a page.

WellNo.OperatorStatus
CHESTER L. MARKHAM1-18PostRock Midcontinent Production LLCRecompleted
CHESTER L. MARKHAM1-18River Rock Operating, LLCProducing

Location

37.609806, -95.696686 · Sec 18 T28S R16E

Kansas Geological Survey data, corpus built 2026-09-07. Lease 1037277566. The state’s own record.