CHILSON, LILYAN -C-

Operated by SWANNER PROPERTIES (P-5 831660) in the WICHITA COUNTY REGULAR field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5630District 09Field 97155001OilCasinghead gasSaveExport
Value, all time
$632 k
Jan 1993 – May 2026
Value, last 12 filed months
$15 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The Railroad Commission's own record for the field this lease produces from, including the spacing rule that governs how close together its wells may be drilled.

These are facts about the field, not about this lease. The field holds 1,994 leases and 19,278 wells, and the rule below applies to all of them.

Discovered
1910-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

What this lease produced, and what it was worth

Oil and condensate are valued on the volume the state records as disposed of; gas and casinghead gas on the volume produced. They are different columns of different files, and the difference is not cosmetic.

StreamBasisVolumeValue
OilDisposition13,860 bbl$632,444
Casinghead gasProduction21 Mcf$0
Total$632,444

21 Mcf of this lease's gas, across 21 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (3)

Every wellbore the Railroad Commission records against this lease key, with the depth, the last completion and the plug date exactly as filed. A well with no plug date is not stated to be producing — the state files no such flag.

These wells centre on 33.8587, -98.6844. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

33.85907, -98.68482 · centre of the wells drawn, derived

What these wells add up to

Every figure below is counted over all of this lease's wells, not over the rows listed above. The Railroad Commission files two facts about a well's state — a plug date and a proration-schedule flag — and a well can carry both, so they are published as separate counts and never merged into a status.

On the schedule
66.7%
2 of 3 wells
With a plug date
66.7%
2 of 3 wells
Median depth
3,417 ft
2 wells filed one
Completion to plug
11.9 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
266.7%
A plug date is filed
266.7%
BothOn the schedule and plugged. Neither fact cancels the other.
266.7%
NeitherNo plug date, and not on the schedule.
133.3%

A plug date is the date the Commission recorded the wellbore as sealed with cement and abandoned. It is the only end-of-life fact Texas files. There is no "active" flag on a well, so this page does not print one — a well with no plug date is not stated to be producing.

How deep they were drilled

Between 2,678 and 4,155 ft, median 3,417 ft, over the 2 wells that filed a depth.

Completions filed
Dec 2013
1 of 3 wells; 2 filed none
Plug dates filed
Mar 2002 – Nov 2025
2 of 3 wells; 1 filed none

Last completion to plug: a median of 11.9 years across the 1 well that filed both dates, with the middle half between 11.9 years and 11.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-4850504822,678 ftMar 2002Yes
42-4858534814
42-4850150674,155 ftDec 2013Nov 2025Yes

The API number is the state's, prefixed 42 for Texas. A well is matched to this lease by the lease key the Commission files on the wellbore record, so a well that has moved between leases appears under each one it was filed against.

Every month this lease reported (401)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

401 months

May 202600106.413.05$0
Apr 202639098.932.87$3,858
Mar 202619089.753.15$1,705
Feb 20260063.503.75$0
Jan 202620059.138.00$1,183
Dec 20250056.664.41$0
Nov 202520058.593.93$1,172
Oct 202520059.383.30$1,188
Sep 202519062.743.08$1,192
Aug 202520063.933.01$1,279
Jul 202539066.743.32$2,603
Jun 202519066.483.13$1,263
May 202519060.553.23$1,150
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 202540074.324.28$2,973
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 202438069.612.36$2,645
Aug 20240075.632.06$0
Jul 202419079.932.15$1,519
Jun 202419078.082.63$1,484
May 202437078.812.20$2,916
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 202437076.091.78$2,815
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 202318074.852.64$1,347
Jun 202318068.962.26$1,241
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 202318072.852.39$1,311
Feb 202318075.112.47$1,352
Jan 20230076.533.39$0
Dec 202237076.415.73$2,827
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 202236084.888.16$3,056
Aug 202218094.529.13$1,701
Jul 202200101.587.54$0
Jun 2022360115.097.98$4,143
May 2022370109.378.43$4,047
Apr 2022210104.226.84$2,189
Mar 2022180108.885.08$1,960
Feb 20220091.054.86$0
Jan 202238081.844.54$3,110
Dec 202119071.323.90$1,355
Nov 20210077.435.24$0
Oct 202137079.795.71$2,952
Sep 202119069.865.35$1,327
Aug 202137066.024.22$2,443
Jul 202118070.783.98$1,274
Jun 202137069.493.38$2,571
May 202118063.483.02$1,143
Apr 202138060.362.76$2,294
Mar 20210061.302.72$0
Feb 202118057.805.55$1,040
Jan 202137050.412.81$1,865
Dec 202037044.642.68$1,652
Nov 202018038.772.71$698
Oct 202037036.972.48$1,368
Sep 202021037.091.99$779
Aug 202020039.982.39$800
Jul 202055038.371.83$2,110
Jun 202062034.901.69$2,164
May 20200016.921.81$0
Apr 202018014.751.80$266
Mar 202018030.341.86$546
Feb 202036049.881.98$1,796
Jan 202018057.252.09$1,031
Dec 201918059.012.30$1,062
Nov 201937055.302.75$2,046
Oct 201918053.472.42$962
Sep 201937055.052.66$2,037
Aug 201936053.112.30$1,912
Jul 201937056.272.46$2,082
Jun 201956052.782.49$2,956
May 201918058.482.74$1,053
Apr 201939062.632.75$2,443
Mar 201919056.803.06$1,079
Feb 201957050.852.79$2,898
Jan 20190046.033.23$0
Dec 201838046.594.19$1,770
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 201837059.543.11$2,203
Aug 201818059.403.07$1,069
Jul 201837065.142.93$2,410
Jun 201819060.183.08$1,143
May 201838065.382.90$2,484
Apr 20180063.842.90$0
Mar 201838061.222.79$2,326
Feb 201837061.782.77$2,286
Jan 201837062.874.01$2,326
Dec 201720057.272.92$1,145
Nov 201719055.423.12$1,053
Oct 201738049.292.98$1,873
Sep 201718047.523.09$855
Aug 201737045.373.00$1,679
Jul 201719043.873.09$834
Jun 201738042.493.09$1,615
May 201719045.373.26$862
Apr 201737047.933.21$1,773
Mar 201718046.772.98$842
Feb 201737050.452.95$1,867
Jan 201719049.413.42$939
Dec 201618048.763.72$878
Nov 201656042.492.64$2,379
Oct 201637046.193.09$1,709
Sep 20160041.553.10$0
Aug 201656041.442.92$2,321
Jul 20160041.622.92$0
Jun 201656045.352.69$2,540
May 201637042.521.99$1,573
Apr 20160036.561.99$0
Mar 201636033.011.79$1,188
Feb 201619026.472.06$503
Jan 201675027.352.36$2,051
Dec 20150032.362.00$0
Nov 201536038.792.17$1,396
Oct 201518043.552.43$784
Sep 201557042.992.76$2,450
Aug 201557040.162.87$2,289
Jul 201538048.152.95$1,830
Jun 201521056.152.88$1,179
May 201531055.212.96$1,712
Apr 201577049.822.71$3,836
Mar 20150042.892.93$0
Feb 201538044.662.98$1,697
Jan 201518043.433.10$782
Dec 201418054.693.59$984
Nov 20140070.464.25$0
Oct 201434078.303.90$2,662
Sep 201434086.164.05$2,929
Aug 201461089.394.04$5,453
Jul 20140096.564.18$0
Jun 201438098.164.74$3,730
May 201435094.734.73$3,316
Apr 201427095.944.81$2,590
Mar 20140095.895.06$0
Feb 201416097.406.19$1,558
Jan 201485090.404.86$7,684
Dec 201319091.824.35$1,745
Nov 201342088.853.74$3,732
Oct 201331097.423.78$3,020
Sep 2013380104.113.72$3,956
Aug 2013370104.253.52$3,857
Jul 201300102.523.72$0
Jun 201357094.403.93$5,381
May 201338094.834.15$3,604
Apr 201338093.964.28$3,570
Mar 201339093.623.91$3,651
Feb 201319091.233.42$1,733
Jan 201327091.603.42$2,473
Dec 201222086.773.42$1,909
Nov 201237086.953.62$3,217
Oct 201239089.383.40$3,486
Sep 201215094.672.92$1,420
Aug 201227092.662.91$2,502
Jul 201257085.133.02$4,852
Jun 201258079.822.52$4,630
May 201220091.612.49$1,832
Apr 2012580101.652.00$5,896
Mar 2012750105.052.22$7,879
Feb 2012860101.102.57$8,695
Jan 20120098.092.73$0
Dec 2011100096.873.24$9,687
Nov 20110095.723.31$0
Oct 201159084.983.65$5,014
Sep 201140083.623.99$3,345
Aug 201128083.404.15$2,335
Jul 201158094.144.52$5,460
Jun 201160092.904.64$5,574
May 201120098.134.40$1,963
Apr 2011580105.964.33$6,146
Mar 201130096.364.06$2,891
Feb 201124085.644.18$2,055
Jan 201160086.504.59$5,190
Dec 201020085.734.35$1,715
Nov 201040080.843.80$3,234
Oct 201012078.103.51$937
Sep 201029072.633.98$2,106
Aug 201042073.684.42$3,095
Jul 201028072.554.74$2,031
Jun 201030070.364.91$2,111
May 20100071.124.24$0
Apr 201061081.694.12$4,983
Mar 201020078.394.39$1,568
Feb 201028073.585.44$2,060
Jan 201036074.365.96$2,677
Dec 200930071.445.48$2,143
Nov 200929074.593.75$2,163
Oct 200932072.544.11$2,321
Sep 200948065.543.06$3,146
Aug 200932067.423.22$2,157
Jul 200947061.133.46$2,873
Jun 200921066.163.90$1,389
May 200974054.743.93$4,051
Apr 200930046.773.59$1,403
Mar 200931042.144.06$1,306
Feb 200921032.814.63$689
Jan 200938035.865.37$1,363
Dec 200833037.105.98$1,224
Nov 200834055.496.86$1,887
Oct 200832075.246.92$2,408
Sep 2008200101.767.88$2,035
Aug 2008280114.228.48$3,198
Jul 2008240131.0811.39$3,146
Jun 2008370131.3313.03$4,859
May 2008360123.1711.57$4,434
Apr 2008280110.3110.45$3,089
Mar 2008180101.909.66$1,834
Feb 200832092.538.77$2,961
Jan 200836090.388.21$3,254
Dec 200735088.337.30$3,092
Nov 200737091.677.29$3,392
Oct 200735082.856.92$2,900
Sep 200710075.846.24$758
Aug 200740069.066.39$2,762
Jul 200744070.906.39$3,120
Jun 200727062.007.55$1,674
May 200730058.747.85$1,762
Apr 200737059.617.81$2,206
Mar 200718056.927.30$1,025
Feb 200715055.108.22$827
Jan 200738050.306.73$1,911
Dec 200628056.656.92$1,586
Nov 200636054.207.62$1,951
Oct 200619054.906.01$1,043
Sep 200652060.085.04$3,124
Aug 200617068.717.34$1,168
Jul 200652069.376.34$3,607
Jun 200635066.286.38$2,320
May 200618066.016.42$1,188
Apr 20065064.397.36$322
Mar 200635056.707.08$1,985
Feb 200630057.597.75$1,728
Jan 200624060.598.93$1,454
Dec 200553054.9413.42$2,912
Nov 200524054.6910.59$1,313
Oct 200523058.3413.80$1,342
Sep 200553061.4512.08$3,257
Aug 200532061.519.80$1,968
Jul 200535055.697.84$1,949
Jun 200531052.337.38$1,622
May 200521045.226.65$950
Apr 200532049.207.36$1,574
Mar 200532050.377.15$1,612
Feb 200521045.226.31$950
Jan 200521043.166.32$906
Dec 200421039.866.75$837
Nov 200432045.286.33$1,449
Oct 200420049.706.52$994
Sep 200431043.245.28$1,340
Aug 200421042.375.55$890
Jul 200432038.286.08$1,225
Jun 200421036.106.43$758
May 200421037.486.49$787
Apr 200441034.475.86$1,413
Mar 200410034.365.53$344
Feb 200421032.455.51$681
Jan 200432032.036.30$1,025
Dec 200311030.266.30$333
Nov 200359028.804.60$1,699
Oct 200366028.174.76$1,859
Sep 200321026.314.75$553
Aug 200332029.765.13$952
Jul 200348029.415.17$1,412
Jun 200348028.565.98$1,371
May 200363026.595.97$1,675
Apr 200348026.675.41$1,280
Mar 200359031.146.10$1,837
Feb 200369033.487.93$2,310
Jan 200363030.315.58$1,910
Dec 200261026.914.85$1,642
Nov 200248024.664.14$1,184
Oct 200250026.464.23$1,323
Sep 200272027.443.64$1,976
Aug 200294025.963.16$2,440
Jul 200298024.583.06$2,409
Jun 200247023.733.34$1,115
May 200260024.663.58$1,480
Apr 200240023.653.51$946
Mar 200268022.003.10$1,496
Feb 20020018.222.38$0
Jan 2002101017.172.38$1,734
Dec 20010016.932.36$0
Nov 200150018.072.41$904
Oct 20010019.782.53$0
Sep 200147024.262.25$1,140
Aug 200151024.873.05$1,268
Jul 200135023.933.20$838
Jun 200128024.563.82$688
May 200118025.524.31$459
Apr 200126024.685.34$642
Mar 200138024.545.38$933
Feb 200155027.755.77$1,526
Jan 200130027.478.40$824
Dec 200015026.889.12$403
Nov 200027032.215.66$870
Oct 200028031.235.15$874
Sep 200042031.875.19$1,339
Aug 200018029.644.54$534
Jul 200040028.534.09$1,141
Jun 200031029.304.40$908
May 200032027.263.68$872
Apr 200035024.513.12$858
Mar 200025028.422.86$711
Feb 200020027.622.73$552
Jan 200010025.272.48$253
Dec 199942024.282.42$1,020
Nov 199933023.192.43$765
Oct 199946020.982.80$965
Sep 199914021.752.62$305
Aug 199935019.262.88$674
Jul 199962017.892.37$1,109
Jun 199931015.942.36$494
May 199931015.792.32$489
Apr 199946015.102.21$695
Mar 199962012.471.84$773
Feb 19993209.981.82$319
Jan 199933010.381.90$343
Dec 19986209.201.77$570
Nov 199862010.892.19$675
Oct 199846012.421.97$571
Sep 199833012.592.08$415
Aug 199831011.301.91$350
Jul 199857011.742.24$669
Jun 199834011.242.24$382
May 199846012.622.21$581
Apr 199862013.042.51$808
Mar 199847012.802.31$602
Feb 199847013.952.30$656
Jan 199847014.702.15$691
Dec 199747016.322.41$767
Nov 199758018.193.09$1,055
Oct 199762019.253.15$1,194
Sep 199745017.742.95$798
Aug 199776017.862.55$1,357
Jul 199762017.582.25$1,090
Jun 199746017.242.26$793
May 199737018.972.31$702
Apr 199736017.882.08$644
Mar 199761018.951.94$1,156
Feb 199750020.492.21$1,025
Jan 199747023.483.54$1,104
Dec 199663023.32$1,469
Nov 199638021.97$835
Oct 199662023.31$1,445
Sep 199636022.22$800
Aug 199649020.26$993
Jul 199648019.55$938
Jun 199649018.73$918
May 199660019.43$1,166
Apr 199648021.51$1,032
Mar 199648019.38$930
Feb 199650016.98$849
Jan 199676017.07$1,297
Dec 199538017.19$653
Nov 199563016.00$1,008
Oct 199525015.43$386
Sep 199550016.18$809
Aug 199559015.92$939
Jul 199557015.24$869
Jun 199559016.41$968
May 199560017.56$1,054
Apr 199559017.73$1,046
Mar 199547016.44$773
Feb 199560016.58$995
Jan 199571015.92$1,130
Dec 199460015.03$902
Nov 199469015.90$1,097
Oct 199445015.58$701
Sep 199459115.29$902
Aug 199462116.13$1,000
Jul 199461117.56$1,071
Jun 199475117.09$1,282
May 199425115.88$397
Apr 199463114.14$891
Mar 199451112.46$635
Feb 199476112.50$950
Jan 199464112.66$810
Dec 199350112.33$617
Nov 199363114.49$913
Oct 199363115.85$999
Sep 199362115.03$932
Aug 199350115.66$783
Jul 199387115.46$1,345
Jun 199350116.79$840
May 199376117.68$1,344
Apr 199363118.05$1,137
Mar 199376118.14$1,379
Feb 199351117.90$913
Jan 199364116.93$1,084

How to read this page

The arithmetic is one multiplication per stream per month. Here it is, worked, on a real row from the table above.

Apr 2026 — as filed, then multipliedworked
Oil                   39 bbl  × $ 98.93 =     $3,858
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                   $3,858

The volumes are the state's, unchanged

Every barrel and every Mcf on this page is a number the Railroad Commission of Texas published in its monthly production query. Nothing is modelled, estimated or filled in.

The dollars are a multiplication, not a valuation

Volume × a published monthly price. It is not what the operator was paid: it takes no account of a contract, a differential, a transportation deduction, or the share any one owner holds.

Oil and gas are priced differently

Oil is a Texas realisation — the crude oil first purchase price. Gas is a benchmark, because no free Texas wellhead gas series exists at any date. The prices page publishes the difference rather than correcting it away.

A lease is not a well

The state reports oil on lease and gas on well, and this page is the lease grain. 09/O/5630 is the state's own key, not one this site invented.