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Y-BAR WEST UNIT A

Operated by CASTLEROCK EF OPERATING LLC (P-5 100156) in the EAGLEVILLE (EAGLE FORD-1) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 18287District 01Field 27135700Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$11.8 M
Jun 2014 – May 2026
Value, last 12 filed months
$12 k
at the published price for each month
Months reported
144
no gaps in the span
Streams
2
oil, casinghead gas

The EAGLEVILLE (EAGLE FORD-1) field

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 5,086 leases and 10,995 wells, and the rule below applies to all of them.

Discovered
2009-08-12
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 40 acres. The field rule took effect on 2017-02-28.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: “BASED ON 3000 TO 1 GAS OIL RATIO”

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
OilDisposition169,600 bbl$10,869,835
Casinghead gasProduction275,866 Mcf$918,788
Total$11,788,623

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 28.5134, -98.8297. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

28.51344, -98.82971 · 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
9,597 ft
1 wells filed one
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.

How deep they were drilled

The one well that filed a depth was drilled to 9,597 ft.

Completions filed
Jun 2014
1 of 1 wells

1 well

42-283346601H9,597 ftJun 2014——

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 (144)

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

144 months

May 202600106.413.05$0
Apr 20261098.932.87$99
Mar 202615089.753.15$1,346
Feb 2026610563.503.75$775
Jan 2026186159.138.00$1,552
Dec 2025108556.664.41$942
Nov 2025157558.593.93$1,173
Oct 202588259.383.30$746
Sep 2025176662.743.08$1,270
Aug 2025199463.933.01$1,498
Jul 2025174866.743.32$1,294
Jun 202518166.483.13$1,200
May 202520060.553.23$1,211
Apr 202527062.363.54$1,684
Mar 202513067.704.27$880
Feb 202519070.884.34$1,347
Jan 202566074.324.28$4,905
Dec 202460068.993.12$4,139
Nov 202424323869.052.20$17,302
Oct 202412433971.372.28$9,623
Sep 202425551369.612.36$18,963
Aug 20247156075.632.06$6,525
Jul 20249513379.932.15$7,879
Jun 202450720078.082.63$40,113
May 20245811578.812.20$4,824
Apr 202432923684.451.66$28,176
Mar 202442620780.301.55$34,528
Feb 20243211,44876.091.78$27,008
Jan 202435557573.023.30$27,818
Dec 202367052471.262.61$49,112
Nov 202391340677.892.81$72,253
Oct 202344673885.443.09$40,385
Sep 20232599389.042.74$23,316
Aug 202355637080.522.67$45,758
Jul 202348358574.852.64$37,698
Jun 202331320968.962.26$22,057
May 20230070.622.23$0
Apr 202304278.122.24$94
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20231076.533.39$77
Dec 202221076.415.73$1,605
Nov 20224852785.005.65$41,377
Oct 2022223087.185.86$19,441
Sep 20229084.888.16$764
Aug 20220094.529.13$0
Jul 20226367101.587.54$64,658
Jun 2022468129115.097.98$54,891
May 2022367783109.378.43$46,742
Apr 2022355591104.226.84$41,039
Mar 20223395108.885.08$36,936
Feb 2022336191.054.86$30,598
Jan 2022477081.844.54$39,038
Dec 2021598071.323.90$42,649
Nov 202136710977.435.24$28,988
Oct 202116842479.795.71$15,827
Sep 2021745769.865.35$2,934
Aug 20213911266.024.22$3,047
Jul 202119161670.783.98$15,972
Jun 202119832669.493.38$14,861
May 2021277663.483.02$17,602
Apr 2021340760.362.76$20,542
Mar 20213613461.302.72$22,222
Feb 20211661757.805.55$9,689
Jan 20212522750.412.81$12,779
Dec 2020270344.642.68$12,061
Nov 2020379338.772.71$14,702
Oct 2020207636.972.48$7,668
Sep 2020297737.091.99$11,030
Aug 202031911939.982.39$13,037
Jul 202029010538.371.83$11,319
Jun 20203326334.901.69$11,693
May 2020320016.921.81$5,414
Apr 2020388514.751.80$5,732
Mar 20203802030.341.86$11,566
Feb 2020295149.881.98$14,717
Jan 2020463657.252.09$26,519
Dec 2019432459.012.30$25,502
Nov 2019308555.302.75$17,046
Oct 2019389353.472.42$20,807
Sep 20194279055.052.66$23,746
Aug 201952365353.112.30$29,281
Jul 201955365356.272.46$32,724
Jun 201959666252.782.49$33,106
May 201954556758.482.74$33,425
Apr 201938024362.632.75$24,468
Mar 201928825756.803.06$17,145
Feb 201937549350.852.79$20,445
Jan 201939853946.033.23$20,060
Dec 2018258046.594.19$12,020
Nov 2018261052.934.24$13,815
Oct 2018286061.443.40$17,572
Sep 2018527059.543.11$31,378
Aug 2018524959.403.07$31,153
Jul 201862134465.142.93$41,461
Jun 201850856060.183.08$32,295
May 201855066865.382.90$37,897
Apr 201844656463.842.90$30,109
Mar 201848957361.222.79$31,533
Feb 201839848261.782.77$25,922
Jan 201839063662.874.01$27,069
Dec 201747676057.272.92$29,481
Nov 201742669355.423.12$25,770
Oct 201749472949.292.98$26,524
Sep 201747375347.523.09$24,802
Aug 201745280645.373.00$22,929
Jul 20174971,03943.873.09$25,011
Jun 20175191,24142.493.09$25,884
May 20175591,95245.373.26$31,732
Apr 20176472,69047.933.21$39,650
Mar 20177443,06146.772.98$43,930
Feb 20176993,05350.452.95$44,279
Jan 20178713,94949.413.42$56,537
Dec 20169343,22548.763.72$57,548
Nov 20161,2173,84642.492.64$61,881
Oct 20161,4004,15546.193.09$77,506
Sep 20161,4044,51441.553.10$72,332
Aug 20161,7594,64141.442.92$86,465
Jul 20161,5462,72041.622.92$72,299
Jun 20161,4613,72645.352.69$76,264
May 20161,7364,52342.521.99$82,820
Apr 20161,7634,04836.561.99$72,515
Mar 20161,7684,58033.011.79$66,578
Feb 20161,7453,23426.472.06$52,864
Jan 20162,1184,65327.352.36$68,929
Dec 20152,0293,25932.362.00$72,181
Nov 20152,1242,78238.792.17$88,419
Oct 20152,4843,09043.552.43$115,676
Sep 20154,3183,34942.992.76$194,869
Aug 20152,9056,47640.162.87$135,267
Jul 20153,75111,82048.152.95$215,422
Jun 20154,8777,06656.152.88$294,214
May 20152,4652,30055.212.96$142,890
Apr 20151,36078549.822.71$69,880
Mar 20151,1041,10342.892.93$50,588
Feb 20155,58815,76444.662.98$296,477
Jan 20157,48316,86043.433.10$377,263
Dec 20149,58716,36154.693.59$583,071
Nov 201410,48116,72570.464.25$809,603
Oct 201411,12519,44278.303.90$946,930
Sep 201414,52821,67986.164.05$1,339,434
Aug 201417,15624,78389.394.04$1,633,577
Jul 201412,66112,89696.564.18$1,276,446
Jun 2014056698.164.74$2,681

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                    1 bbl  × $ 98.93 =        $99
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                      $99

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. 01/O/18287 is the state's own key, not one this site invented.