CHAPMAN -C-

Operated by RIO PETROLEUM, INC. (P-5 712840) in the PANHANDLE GRAY COUNTY FIELD field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 520District 10Field 68873001OilCasinghead gasSaveExport
Value, all time
$25.8 M
Jan 1993 – May 2026
Value, last 12 filed months
$946 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 837 leases and 6,360 wells, and the rule below applies to all of them.

Discovered
1921-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
467 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 1989-05-01.

The Commission's schedule remark for this field reads: UNTIL THE FLUID MIGRATION FROM SUCH STRATA IS ELIMINATED.

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
OilDisposition442,931 bbl$25,751,512
Casinghead gasProduction17,945 Mcf$76,427
Total$25,827,939

1,516 Mcf of this lease's gas, across 48 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 (1)

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 35.3697, -100.6995. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.36972, -100.69954 · 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
0.0%
0 of 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
no depth filed
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
1100.0%

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.

1 well

42-179036263

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 20261,21115106.413.05$128,908
Apr 20261,043898.932.87$103,207
Mar 20261,038889.753.15$93,186
Feb 20261,205463.503.75$76,533
Jan 20261,269259.138.00$75,052
Dec 20251,023756.664.41$57,994
Nov 20251,2121158.593.93$71,054
Oct 20251,2121059.383.30$72,002
Sep 20251,215962.743.08$76,257
Aug 20251,212963.933.01$77,510
Jul 20251,368866.743.32$91,327
Jun 20253421066.483.13$22,767
May 20251,0514760.553.23$63,790
Apr 20258731862.363.54$54,504
Mar 20251,412067.704.27$95,592
Feb 20255211470.884.34$36,989
Jan 20251,5565974.324.28$115,894
Dec 20241,38615968.993.12$96,116
Nov 20241,2191469.052.20$84,203
Oct 2024872271.372.28$62,239
Sep 20241,556069.612.36$108,313
Aug 20241,550075.632.06$117,227
Jul 20241,206079.932.15$96,396
Jun 20241,053078.082.63$82,218
May 20241,393078.812.20$109,782
Apr 20241,378084.451.66$116,372
Mar 20241,069080.301.55$85,841
Feb 20241,215076.091.78$92,449
Jan 20241,417073.023.30$103,469
Dec 20231,067071.262.61$76,034
Nov 20231,403677.892.81$109,297
Oct 20231,589085.443.09$135,764
Sep 2023864089.042.74$76,931
Aug 2023888780.522.67$71,520
Jul 20231,1962174.852.64$89,576
Jun 20238642668.962.26$59,640
May 20231,3984470.622.23$98,825
Apr 20231,0383378.122.24$81,162
Mar 20231,5412272.852.39$112,315
Feb 20231,086075.112.47$81,569
Jan 20231,247076.533.39$95,433
Dec 20221,0241576.415.73$78,330
Nov 20221,4231885.005.65$121,057
Oct 20221,228487.185.86$107,081
Sep 20221,2472584.888.16$106,049
Aug 20221,2552894.529.13$118,878
Jul 20221,19928101.587.54$122,006
Jun 20221,22412115.097.98$140,966
May 20221,40816109.378.43$154,128
Apr 20221,2587104.226.84$131,157
Mar 20221,26117108.885.08$137,384
Feb 20221,24223491.054.86$114,221
Jan 20221,2681281.844.54$103,828
Dec 20211,4071071.323.90$100,386
Nov 20211,0321177.435.24$79,965
Oct 20211,2191579.795.71$97,350
Sep 20211,4093569.865.35$98,620
Aug 20211,2073866.024.22$79,847
Jul 20211,3663770.783.98$96,833
Jun 20211,2293869.493.38$85,532
May 20211,3932163.483.02$88,491
Apr 20211,4301160.362.76$86,345
Mar 20211,4372261.302.72$88,148
Feb 20211,0671257.805.55$61,739
Jan 20211,432750.412.81$72,207
Dec 20201,4331944.642.68$64,020
Nov 2020692138.772.71$26,832
Oct 2020864036.972.48$31,942
Sep 20201,236437.091.99$45,851
Aug 20201,043739.982.39$41,716
Jul 20201,563138.371.83$59,974
Jun 20201,235134.901.69$43,103
May 20201,0451516.921.81$17,709
Apr 20207062714.751.80$10,462
Mar 20201,0596030.341.86$32,241
Feb 20201,2201949.881.98$60,891
Jan 20201,2445057.252.09$71,324
Dec 20191,2534059.012.30$74,032
Nov 20198791555.302.75$48,650
Oct 20191,0495753.472.42$56,228
Sep 20191,3467355.052.66$74,291
Aug 20191,17912753.112.30$62,909
Jul 20191,37012856.272.46$77,405
Jun 20191,04415252.782.49$55,481
May 20191,39614458.482.74$82,033
Apr 20191,56512562.632.75$98,360
Mar 20198849956.803.06$50,514
Feb 20191,3937150.852.79$71,032
Jan 20191,2477246.033.23$57,632
Dec 20181,4148146.594.19$66,217
Nov 20181,2705252.934.24$67,441
Oct 20181,5708361.443.40$96,743
Sep 20181,2247959.543.11$73,122
Aug 20181,3846959.403.07$82,421
Jul 20181,8837965.142.93$122,890
Jun 20181,2167860.183.08$73,419
May 20181,7289565.382.90$113,252
Apr 20181,0247663.842.90$65,593
Mar 20181,77710261.222.79$109,072
Feb 20181,5974361.782.77$98,782
Jan 20181,784062.874.01$112,160
Dec 20171,231057.272.92$70,499
Nov 20171,577055.423.12$87,397
Oct 20171,407049.292.98$69,351
Sep 20171,414047.523.09$67,193
Aug 20171,377045.373.00$62,474
Jul 20171,395043.873.09$61,199
Jun 20171,2412142.493.09$52,795
May 20171,413045.373.26$64,108
Apr 20171,402447.933.21$67,211
Mar 20171,4301746.772.98$66,932
Feb 20171,4004550.452.95$70,763
Jan 20171,4203749.413.42$70,289
Dec 20161,4161748.763.72$69,107
Nov 20161,4093542.492.64$59,961
Oct 20161,2101846.193.09$55,946
Sep 20161,0573141.553.10$44,014
Aug 20161,2192941.442.92$50,600
Jul 20161,2281941.622.92$51,165
Jun 20168611045.352.69$39,073
May 2016873442.521.99$37,128
Apr 20161,436436.561.99$52,508
Mar 20161,4282133.011.79$47,176
Feb 20161,2462426.472.06$33,031
Jan 20161,2292027.352.36$33,660
Dec 20151,5993132.362.00$51,806
Nov 20158843338.792.17$34,362
Oct 20151,6033343.552.43$69,891
Sep 20151,2381742.992.76$53,269
Aug 20151,4175640.162.87$57,068
Jul 20151,7453748.152.95$84,131
Jun 20158552456.152.88$48,077
May 20151,4303655.212.96$79,057
Apr 20151,4373949.822.71$71,697
Mar 20151,4444542.892.93$62,065
Feb 20151,2465344.662.98$55,804
Jan 20151,8076143.433.10$78,667
Dec 20141,6096954.693.59$88,244
Nov 20141,4127470.464.25$99,804
Oct 20141,7586778.303.90$137,913
Sep 20141,5688686.164.05$135,447
Aug 20141,5738089.394.04$140,933
Jul 20141,7533496.564.18$169,412
Jun 20141,4105798.164.74$138,676
May 20141,9587494.734.73$185,831
Apr 20141,7907495.944.81$172,088
Mar 20141,9686095.895.06$189,015
Feb 20141,4275897.406.19$139,349
Jan 20141,7374890.404.86$157,258
Dec 20131,9616491.824.35$180,338
Nov 20131,7587788.853.74$156,486
Oct 20131,6008797.423.78$156,201
Sep 20131,57889104.113.72$164,616
Aug 20131,87954104.253.52$196,076
Jul 20131,5250102.523.72$156,343
Jun 20131,3953594.403.93$131,826
May 20131,2234994.834.15$116,180
Apr 20131,3955993.964.28$131,327
Mar 20131,0674293.623.91$100,057
Feb 20131,3123591.233.42$119,813
Jan 20131,4162791.603.42$129,798
Dec 20121,4093986.773.42$122,392
Nov 20121,2124486.953.62$105,543
Oct 20121,5685789.383.40$140,342
Sep 20121,5755094.672.92$149,251
Aug 20121,5775592.662.91$146,285
Jul 20121,4272385.133.02$121,550
Jun 20121,7612779.822.52$140,631
May 20121,6052891.612.49$147,104
Apr 20121,42428101.652.00$144,806
Mar 20121,94527105.052.22$204,382
Feb 20121,62228101.102.57$164,056
Jan 20121,0522198.092.73$103,248
Dec 20111,8243696.873.24$176,808
Nov 20111,4412495.723.31$138,012
Oct 20111,8253184.983.65$155,202
Sep 20111,4393083.623.99$120,449
Aug 20111,7703683.404.15$147,767
Jul 20111,7073494.144.52$160,851
Jun 20111,6693992.904.64$155,231
May 20111,7172698.134.40$168,604
Apr 20111,40413105.964.33$148,824
Mar 20111,9413396.364.06$187,169
Feb 20111,7411385.644.18$149,154
Jan 20111,5851086.504.59$137,148
Dec 20101,8561885.734.35$159,193
Nov 20101,5691980.843.80$126,910
Oct 20101,6734578.103.51$130,819
Sep 20101,7102672.633.98$124,301
Aug 20101,9444973.684.42$143,450
Jul 20101,5863072.554.74$115,206
Jun 20102,0005070.364.91$140,966
May 20101,5991471.124.24$113,780
Apr 20101,3805281.694.12$112,947
Mar 20101,7385478.394.39$136,479
Feb 20101,6924273.585.44$124,726
Jan 2010344574.365.96$25,610
Dec 20093632471.445.48$26,064
Nov 20098944974.593.75$66,867
Oct 20095382772.544.11$39,138
Sep 20093592465.543.06$23,602
Aug 20095322767.423.22$35,954
Jul 20093582861.133.46$21,982
Jun 20093582466.163.90$23,779
May 20095332354.743.93$29,267
Apr 20093643746.773.59$17,157
Mar 20093592942.144.06$15,246
Feb 20097241832.814.63$23,838
Jan 20095332835.865.37$19,264
Dec 20087184437.105.98$26,901
Nov 20081,6218055.496.86$90,498
Oct 20081,6208075.246.92$122,443
Sep 20081,60558101.767.88$163,782
Aug 20081,57539114.228.48$180,227
Jul 20081,24556131.0811.39$163,832
Jun 20081,57758131.3313.03$207,863
May 20081,61676123.1711.57$199,922
Apr 20081,41862110.3110.45$157,068
Mar 20081,45768101.909.66$149,125
Feb 20081,5776992.538.77$146,525
Jan 20081,4306990.388.21$129,810
Dec 20071,6118088.337.30$142,884
Nov 20071,0858491.677.29$100,074
Oct 20071,62110282.856.92$135,006
Sep 20071,4198475.846.24$108,141
Aug 20071,2576369.066.39$87,211
Jul 20071,0596670.906.39$75,505
Jun 20071,2776562.007.55$79,665
May 20071,2537558.747.85$74,190
Apr 20071,2667059.617.81$76,013
Mar 20071,0975356.927.30$62,828
Feb 20077055755.108.22$39,314
Jan 20071,0927650.306.73$55,439
Dec 20069025956.656.92$51,506
Nov 20068895754.207.62$48,618
Oct 20068755454.906.01$48,362
Sep 20061,00610760.085.04$60,979
Aug 20061,2168768.717.34$84,190
Jul 20061,0408969.376.34$72,709
Jun 20061,0476666.286.38$69,817
May 20061,4277966.016.42$94,704
Apr 20068971564.397.36$57,868
Mar 20063513456.707.08$20,143
Feb 20065247757.597.75$30,774
Jan 200668410160.598.93$42,346
Dec 20058989554.9413.42$50,611
Nov 20056986954.6910.59$38,904
Oct 20057128958.3413.80$42,766
Sep 20058802561.4512.08$54,378
Aug 20055304561.519.80$33,041
Jul 20051798255.697.84$10,612
Jun 200588211352.337.38$46,989
May 200588711645.226.65$40,882
Apr 200586410949.207.36$43,311
Mar 20051,03711850.377.15$53,078
Feb 200586710145.226.31$39,843
Jan 20058347043.166.32$36,438
Dec 20041,2172839.866.75$48,699
Nov 20046772845.286.33$30,832
Oct 20047254049.706.52$36,293
Sep 20046977143.245.28$30,513
Aug 20048486942.375.55$36,313
Jul 20041,0579538.286.08$41,040
Jun 20041,05211536.106.43$38,717
May 20041,06710137.486.49$40,647
Apr 20041,0794834.475.86$37,474
Mar 20048985234.365.53$31,143
Feb 20048997132.455.51$29,564
Jan 20049016732.036.30$29,281
Dec 20037253730.266.30$22,172
Nov 20035472528.804.60$15,868
Oct 20035494728.174.76$15,689
Sep 200336210726.314.75$10,032
Aug 20033515729.765.13$10,738
Jul 20033554229.415.17$10,658
Jun 200301428.565.98$84
May 20035266026.595.97$14,345
Apr 20031823226.675.41$5,027
Mar 20033547931.146.10$11,505
Feb 20035429233.487.93$18,875
Jan 20037239830.315.58$22,461
Dec 20025427826.914.85$14,964
Nov 200271413224.664.14$18,153
Oct 200289610026.464.23$24,131
Sep 20027047227.443.64$19,579
Aug 20027197025.963.16$18,887
Jul 20028086924.583.06$20,072
Jun 20027086423.733.34$17,014
May 20028736624.663.58$21,765
Apr 20027096023.653.51$16,979
Mar 20028924822.003.10$19,773
Feb 20027304718.222.38$13,412
Jan 20027294117.172.38$12,614
Dec 20019128416.932.36$15,639
Nov 20015417718.072.41$9,961
Oct 20019247519.782.53$18,466
Sep 20017336524.262.25$17,929
Aug 20019116024.873.05$22,840
Jul 20017226123.933.20$17,472
Jun 20017306424.563.82$18,174
May 20019158425.524.31$23,713
Apr 20019188524.685.34$23,110
Mar 200191011324.545.38$22,939
Feb 20011,0036427.755.77$28,202
Jan 20015135027.478.40$14,512
Dec 20005369026.889.12$15,229
Nov 200072213832.215.66$24,036
Oct 20007319131.235.15$23,297
Sep 20009088331.875.19$29,368
Aug 20007199629.644.54$21,747
Jul 20007277128.534.09$21,032
Jun 20008575329.304.40$25,343
May 20007304427.263.68$20,062
Apr 20007272124.513.12$17,884
Mar 20007284528.422.86$20,818
Feb 20001,0916027.622.73$30,297
Jan 20005404525.272.48$13,757
Dec 19998984124.282.42$21,903
Nov 19995465523.192.43$12,796
Oct 19999035120.982.80$19,088
Sep 19997305121.752.62$16,011
Aug 19999145719.262.88$17,768
Jul 19999055317.892.37$16,316
Jun 19999123615.942.36$14,622
May 19999154315.792.32$14,548
Apr 19991,0935115.102.21$16,617
Mar 19999154912.471.84$11,500
Feb 1999734279.981.82$7,374
Jan 199990624310.381.90$9,866
Dec 19987331759.201.77$7,054
Nov 1998738010.892.19$8,037
Oct 1998739012.421.97$9,178
Sep 19987269312.592.08$9,334
Aug 199898616311.301.91$11,453
Jul 1998779011.742.24$9,145
Jun 1998814011.242.24$9,149
May 1998719012.622.21$9,074
Apr 1998951013.042.51$12,401
Mar 1998664012.802.31$8,499
Feb 1998671013.952.30$9,360
Jan 19981,210014.702.15$17,787
Dec 19975625216.322.41$9,297
Nov 19979325018.193.09$17,107
Oct 19979265219.253.15$17,989
Sep 19978975017.742.95$16,061
Aug 19976635217.862.55$11,974
Jul 19971,0165217.582.25$17,978
Jun 19977015017.242.26$12,198
May 19971,0194718.972.31$19,439
Apr 19976994917.882.08$12,600
Mar 19976755218.951.94$12,892
Feb 19971,0194720.492.21$20,983
Jan 19971,0005223.483.54$23,664
Dec 19967115223.32$16,581
Nov 19966795021.97$14,918
Oct 19961,0375223.31$24,172
Sep 19967055022.22$15,665
Aug 19961,0475220.26$21,212
Jul 19967045219.55$13,763
Jun 19966925018.73$12,961
May 19961,0475219.43$20,343
Apr 19966665021.51$14,326
Mar 19969945219.38$19,264
Feb 19967074916.98$12,005
Jan 19961,0455217.07$17,838
Dec 19957084517.19$12,171
Nov 19956944916.00$11,104
Oct 19957083415.43$10,924
Sep 19956814916.18$11,019
Aug 19951,0225215.92$16,270
Jul 19956965015.24$10,607
Jun 19951,0505016.41$17,231
May 19956915217.56$12,134
Apr 19959775017.73$17,322
Mar 19951,0245216.44$16,835
Feb 19957074716.58$11,722
Jan 19951,0345215.92$16,461
Dec 19946995215.03$10,506
Nov 19941,0505015.90$16,695
Oct 19941,043115.58$16,250
Sep 19946915015.29$10,565
Aug 19941,017116.13$16,404
Jul 19941,031117.56$18,104
Jun 19941,026117.09$17,534
May 1994668115.88$10,608
Apr 19941,042114.14$14,734
Mar 19941,051112.46$13,095
Feb 1994699112.50$8,738
Jan 19941,059112.66$13,407
Dec 19931,041112.33$12,836
Nov 1993688114.49$9,969
Oct 19931,053115.85$16,690
Sep 19931,050115.03$15,782
Aug 1993686115.66$10,743
Jul 19931,034115.46$15,986
Jun 19931,038116.79$17,428
May 19931,020117.68$18,034
Apr 1993932118.05$16,823
Mar 19938295218.14$15,038
Feb 19931,0354717.90$18,527
Jan 19937005216.93$11,851

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.

May 2026 — as filed, then multipliedworked
Oil                1,211 bbl  × $106.41 =   $128,863
Casinghead gas        15 Mcf  × $  3.05 =        $46

────────────────────────────────────────────────────
Month total                                 $128,908

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. 10/O/520 is the state's own key, not one this site invented.