HASEL28

Operated by COG OPERATING LLC (P-5 166150) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 15788District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$10.3 M
Jul 2005 – May 2026
Value, last 12 filed months
$98 k
at the published price for each month
Months reported
251
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 7,461 leases and 22,481 wells, and the rule below applies to all of them.

Discovered
1904-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2016-03-08.

The Commission's schedule remark for this field reads: AREA) 85279200.

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
OilDisposition127,177 bbl$8,761,799
Casinghead gasProduction317,062 Mcf$1,532,355
Total$10,294,154

Wells on this lease (2)

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 31.3469, -101.9831. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

31.34689, -101.98308 · 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
50.0%
1 of 2 wells
With a plug date
50.0%
1 of 2 wells
Median depth
10,243 ft
2 wells filed one
Completion to plug
11.0 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
150.0%
A plug date is filed
150.0%
BothOn the schedule and plugged. Neither fact cancels the other.
150.0%
NeitherNo plug date, and not on the schedule.
150.0%

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.

How deep they were drilled

Between 10,230 and 10,255 ft, median 10,243 ft, over the 2 wells that filed a depth.

Completions filed
Jul 2005 – Jun 2013
2 of 2 wells
Plug dates filed
Jun 2024
1 of 2 wells; 1 filed none

Last completion to plug: a median of 11.0 years across the 1 well that filed both dates, with the middle half between 11.0 years and 11.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-46138331210,255 ftJun 2013Jun 2024Yes
42-46134806110,230 ftJul 2005

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 (251)

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

251 months

May 202618063106.413.05$19,346
Apr 202605198.932.87$146
Mar 20262156189.753.15$19,488
Feb 202603963.503.75$146
Jan 20262161259.138.00$12,868
Dec 20251911256.664.41$10,875
Nov 202501858.593.93$71
Oct 202503459.383.30$112
Sep 20251717662.743.08$10,962
Aug 20251797263.933.01$11,661
Jul 202504666.743.32$153
Jun 20251747266.483.13$11,793
May 202505460.553.23$175
Apr 20251622562.363.54$10,191
Mar 202502567.704.27$107
Feb 20251862270.884.34$13,279
Jan 202503474.324.28$145
Dec 2024190068.993.12$13,108
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 202403469.612.36$80
Aug 2024218075.632.06$16,487
Jul 202407679.932.15$163
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 2024024476.091.78$435
Jan 20241791,21473.023.30$17,074
Dec 20233591,14671.262.61$28,574
Nov 20232931,48377.892.81$26,985
Oct 20233751,73985.443.09$37,409
Sep 20231811,29089.042.74$19,644
Aug 202322069380.522.67$19,567
Jul 20234002,04174.852.64$35,332
Jun 20231761,05168.962.26$14,511
May 202305070.622.23$111
Apr 2023040878.122.24$913
Mar 20233951,47672.852.39$32,308
Feb 20232921,50275.112.47$25,636
Jan 20233241,78176.533.39$30,829
Dec 20221851,84176.415.73$24,683
Nov 20223921,73185.005.65$43,094
Oct 20223891,86887.185.86$44,867
Sep 20222191,90084.888.16$34,100
Aug 20224462,00294.529.13$60,428
Jul 20222101,948101.587.54$36,024
Jun 20224261,557115.097.98$61,449
May 20222201,531109.378.43$36,972
Apr 20222441,523104.226.84$35,843
Mar 20226541,679108.885.08$79,731
Feb 202201,51591.054.86$7,361
Jan 20223711,91581.844.54$39,052
Dec 20212321,99971.323.90$24,341
Nov 202101,90877.435.24$9,992
Oct 20217591,85079.795.71$71,131
Sep 20213471,29469.865.35$31,166
Aug 20213821,36466.024.22$30,977
Jul 20213131,28470.783.98$27,267
Jun 20213721,21069.493.38$29,941
May 20212414263.483.02$15,425
Apr 2021041860.362.76$1,153
Mar 20217391,18161.302.72$48,509
Feb 2021099357.805.55$5,509
Jan 20212961,25450.412.81$18,445
Dec 20206071,37144.642.68$30,765
Nov 20204181,53738.772.71$20,366
Oct 20204191,29936.972.48$18,710
Sep 20204041,37237.091.99$17,716
Aug 20206851,63839.982.39$31,293
Jul 202020196038.371.83$9,464
Jun 20206601,08834.901.69$24,873
May 20203021,47416.921.81$7,785
Apr 20206691,62914.751.80$12,807
Mar 20208471,60330.341.86$28,674
Feb 202001,04549.881.98$2,070
Jan 202036443757.252.09$21,754
Dec 20198341,55359.012.30$52,793
Nov 20198382,24355.302.75$52,511
Oct 20193971,75253.472.42$25,465
Sep 20198012,32855.052.66$50,281
Aug 20197811,49253.112.30$44,917
Jul 20194052,00456.272.46$27,719
Jun 20194292,10952.782.49$27,897
May 20193781,80658.482.74$27,054
Apr 20198071,58762.632.75$54,908
Mar 201968596456.803.06$41,860
Feb 201926110850.852.79$13,573
Jan 2019022146.033.23$713
Dec 20181,0881,62746.594.19$57,500
Nov 20186241,46552.934.24$39,236
Oct 20181,0511,70861.443.40$70,377
Sep 201862277959.543.11$39,455
Aug 201835368659.403.07$23,072
Jul 20181,0851,11265.142.93$73,937
Jun 201867155960.183.08$42,101
May 201867218765.382.90$44,478
Apr 201874890163.842.90$50,366
Mar 201878173261.222.79$49,853
Feb 20181,13479161.782.77$72,247
Jan 201841765162.874.01$28,827
Dec 201770933657.272.92$41,586
Nov 201796254555.423.12$55,014
Oct 201763152949.292.98$32,680
Sep 201739426947.523.09$19,553
Aug 201738335945.373.00$18,455
Jul 201774834443.873.09$33,877
Jun 201737233142.493.09$16,828
May 201741427545.373.26$19,681
Apr 2017412047.933.21$577
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 201638175348.763.72$21,381
Nov 2016222,02342.492.64$6,284
Oct 20167342,08146.193.09$40,334
Sep 201601,98441.553.10$6,152
Aug 20163652,26541.442.92$21,749
Jul 20163682,36841.622.92$22,241
Jun 20167392,22445.352.69$39,487
May 20163682,42142.521.99$20,468
Apr 20163731,99536.561.99$17,609
Mar 20165642,25333.011.79$22,660
Feb 20161862,13926.472.06$9,338
Jan 20165462,26127.352.36$20,279
Dec 20153612,27432.362.00$16,233
Nov 20155542,25938.792.17$26,386
Oct 20157492,42343.552.43$38,499
Sep 20156912,42742.992.76$36,401
Aug 20153502,47540.162.87$21,165
Jul 20157182,30848.152.95$41,369
Jun 20155032,29356.152.88$34,854
May 20157242,19155.212.96$46,447
Apr 20156772,09149.822.71$39,388
Mar 20158832,08642.892.93$43,994
Feb 20156811,97544.662.98$36,291
Jan 20157151,88143.433.10$36,885
Dec 20141,0712,24654.693.59$66,639
Nov 20143912,41770.464.25$37,827
Oct 20149373,32578.303.90$86,338
Sep 20149372,97786.164.05$92,775
Aug 20149292,03389.394.04$91,247
Jul 20145651,49196.564.18$60,788
Jun 20149181,94498.164.74$99,319
May 20147422,25394.734.73$80,939
Apr 20141,5152,45595.944.81$157,155
Mar 20147402,13095.895.06$81,730
Feb 20141,8602,68697.406.19$197,796
Jan 20147461,29390.404.86$73,723
Dec 201337156091.824.35$36,504
Nov 20133911,05688.853.74$38,688
Oct 20137481,18697.423.78$77,352
Sep 20131,0871,381104.113.72$118,302
Aug 20131,0911,418104.253.52$118,732
Jul 20137371,649102.523.72$81,688
Jun 201318983294.403.93$21,114
May 201354192694.834.15$55,145
Apr 20139601,07693.964.28$94,810
Mar 20139151,08993.623.91$89,923
Feb 20137361,01691.233.42$70,620
Jan 20131,49794191.603.42$140,343
Dec 20121,5071,09886.773.42$134,518
Nov 201219061286.953.62$18,739
Oct 201237461989.383.40$35,533
Sep 201218068694.672.92$19,043
Aug 201237469592.662.91$36,676
Jul 201218471685.133.02$17,827
Jun 201237862279.822.52$31,739
May 201220044291.612.49$19,422
Apr 2012196476101.652.00$20,874
Mar 2012377660105.052.22$41,070
Feb 2012373599101.102.57$39,250
Jan 201235869998.092.73$37,027
Dec 201136362896.873.24$37,198
Nov 201136262995.723.31$36,733
Oct 201135866784.983.65$32,856
Sep 201117770983.623.99$17,627
Aug 201119265883.404.15$18,743
Jul 201155652994.144.52$54,731
Jun 201117256192.904.64$18,582
May 201135674498.134.40$38,211
Apr 2011189729105.964.33$23,185
Mar 201153174696.364.06$54,194
Feb 2011153685.644.18$2,326
Jan 201136166886.504.59$34,292
Dec 201017980185.734.35$18,828
Nov 201019988880.843.80$19,457
Oct 201037498378.103.51$32,659
Sep 201036797272.633.98$30,523
Aug 20103521,04173.684.42$30,536
Jul 20103641,04972.554.74$31,377
Jun 20101911,03770.364.91$18,531
May 20103731,08471.124.24$31,119
Apr 20103731,00481.694.12$34,610
Mar 20103631,02278.394.39$32,941
Feb 201036497973.585.44$32,111
Jan 20103581,09374.365.96$33,140
Dec 20093561,09171.445.48$31,415
Nov 20095251,13674.593.75$43,421
Oct 20093491,23572.544.11$30,393
Sep 20093521,26465.543.06$26,944
Aug 200952092167.423.22$38,023
Jul 2009027061.133.46$935
Jun 20093531,38166.163.90$28,733
May 20095291,35254.743.93$34,265
Apr 20093531,32946.773.59$21,278
Mar 20095291,59642.144.06$28,770
Feb 20093761,50932.814.63$19,328
Jan 20093681,75035.865.37$22,596
Dec 20087461,83737.105.98$38,657
Nov 20083651,89855.496.86$33,275
Oct 20081831,22475.246.92$22,241
Sep 20085281,835101.767.88$68,184
Aug 20083552,335114.228.48$60,356
Jul 20087072,587131.0811.39$122,138
Jun 20081842,756131.3313.03$60,083
May 20087113,612123.1711.57$129,380
Apr 20085403,637110.3110.45$97,592
Mar 20088603,715101.909.66$123,536
Feb 20085342,47792.538.77$71,136
Jan 20088912,16890.388.21$98,319
Dec 20075611,18688.337.30$58,213
Nov 20075431,94291.677.29$63,937
Oct 20078804,06382.856.92$101,032
Sep 20077044,31175.846.24$80,310
Aug 20077222,08469.066.39$63,174
Jul 20077312,50870.906.39$67,849
Jun 20079072,15562.007.55$72,501
May 20077201,90858.747.85$57,264
Apr 20079081,66459.617.81$67,114
Mar 20079541,68156.927.30$66,576
Feb 20077441,68555.108.22$54,838
Jan 20071,1142,01050.306.73$69,555
Dec 20061,5272,10856.656.92$101,089
Nov 20067291,65754.207.62$52,134
Oct 20061,3961,76854.906.01$87,273
Sep 20061,6063,36660.085.04$113,444
Aug 20064,4886,09968.717.34$353,137
Jul 200636356569.376.34$28,765
Jun 200635023366.286.38$24,685
May 20061,05359666.016.42$73,338
Apr 200655164464.397.36$40,219
Mar 20061,20986956.707.08$74,705
Feb 200672774157.597.75$47,612
Jan 20062,0651,48260.598.93$138,358
Dec 20051,2531,08554.9413.42$83,396
Nov 200508054.6910.59$847
Oct 20051,9721,05358.3413.80$129,573
Sep 20052,4802,19061.4512.08$178,849
Aug 200590622661.519.80$57,942
Jul 20050055.697.84$0

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                  180 bbl  × $106.41 =    $19,154
Casinghead gas        63 Mcf  × $  3.05 =       $192

────────────────────────────────────────────────────
Month total                                  $19,346

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. 7C/O/15788 is the state's own key, not one this site invented.