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UNDINE

Operated by RING ENERGY, INC. (P-5 712382) in the SHAFTER LAKE (SAN ANDRES) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 51933District 08Field 82570500Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$10.7 M
Nov 2018 – May 2026
Value, last 12 filed months
$1.0 M
at the published price for each month
Months reported
91
no gaps in the span
Streams
2
oil, casinghead gas

The SHAFTER LAKE (SAN ANDRES) 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 194 leases and 1,113 wells, and the rule below applies to all of them.

Discovered
1953-04-01
as the register files it
Field class
Oil
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 10 acres. The field rule took effect on 2014-01-07.

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: “DIAGONAL LIMITATION, TOP ALLOWABLE ADJUSTED.”

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
OilDisposition165,037 bbl$10,594,488
Casinghead gasProduction30,288 Mcf$94,955
Total$10,689,443

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 32.3993, -102.6910. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.39926, -102.69104 · 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
4,587 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 4,587 ft.

Completions filed
Nov 2018
1 of 1 wells

1 well

42-003478001H4,587 ftNov 2018——

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 (91)

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

91 months

May 20261,219766106.413.05$132,047
Apr 20261,15582398.932.87$116,626
Mar 20261,15469889.753.15$105,770
Feb 20261,16668263.503.75$76,599
Jan 20261,02550659.138.00$64,655
Dec 20251,24174056.664.41$73,581
Nov 20251,1131,17158.593.93$69,809
Oct 20251,0341,22359.383.30$65,441
Sep 20259541,19462.743.08$63,528
Aug 20251,07876063.933.01$71,208
Jul 20251,08670666.743.32$74,820
Jun 20251,2791,06666.483.13$88,363
May 20251,29291060.553.23$81,172
Apr 20251,38688362.363.54$89,560
Mar 20251,5041,09367.704.27$106,486
Feb 20251,2871,02570.884.34$95,672
Jan 20251,6771,97974.324.28$133,102
Dec 20241,5531,16068.993.12$110,762
Nov 20241,9712,02569.052.20$140,549
Oct 20241,9171,59271.372.28$140,448
Sep 202497479669.612.36$69,682
Aug 202440117275.632.06$30,683
Jul 202496467879.932.15$78,508
Jun 202498260578.082.63$78,268
May 202498164578.812.20$78,731
Apr 202471170484.451.66$61,212
Mar 202487064180.301.55$70,851
Feb 20241,09068376.091.78$84,156
Jan 202489967273.023.30$67,861
Dec 20231,05477271.262.61$77,124
Nov 202397372977.892.81$77,834
Oct 20231,36573585.443.09$118,895
Sep 20231,20263889.042.74$108,771
Aug 20231,37181680.522.67$112,574
Jul 20231,460074.852.64$109,281
Jun 20231,313068.962.26$90,544
May 20231,403070.622.23$99,080
Apr 20231,318078.122.24$102,962
Mar 20231,660072.852.39$120,931
Feb 20231,559075.112.47$117,096
Jan 20231,375076.533.39$105,229
Dec 20221,525076.415.73$116,525
Nov 2022984085.005.65$83,640
Oct 20221,736087.185.86$151,344
Sep 20221,629084.888.16$138,270
Aug 20221,493094.529.13$141,118
Jul 20221,6010101.587.54$162,630
Jun 20221,5420115.097.98$177,469
May 20221,8160109.378.43$198,616
Apr 20222,0440104.226.84$213,026
Mar 20222,0070108.885.08$218,522
Feb 20221,112091.054.86$101,248
Jan 20221,383081.844.54$113,185
Dec 20211,853071.323.90$132,156
Nov 20212,003077.435.24$155,092
Oct 20212,198079.795.71$175,378
Sep 20212,125069.865.35$148,453
Aug 20211,560066.024.22$102,991
Jul 2021819070.783.98$57,969
Jun 20211,240069.493.38$86,168
May 20211,779063.483.02$112,931
Apr 20212,298060.362.76$138,707
Mar 20212,626061.302.72$160,974
Feb 20211,385057.805.55$80,053
Jan 20211,761050.412.81$88,772
Dec 20202,341044.642.68$104,502
Nov 20202,118038.772.71$82,115
Oct 20202,302036.972.48$85,105
Sep 20202,380037.091.99$88,274
Aug 20202,333039.982.39$93,273
Jul 20201,616038.371.83$62,006
Jun 2020126034.901.69$4,397
May 20200016.921.81$0
Apr 20201,224014.751.80$18,054
Mar 20202,239030.341.86$67,931
Feb 20202,999049.881.98$149,590
Jan 20202,458057.252.09$140,721
Dec 20192,585059.012.30$152,541
Nov 20192,603055.302.75$143,946
Oct 20192,742053.472.42$146,615
Sep 20192,458055.052.66$135,313
Aug 20192,613053.112.30$138,776
Jul 20192,625056.272.46$147,709
Jun 20193,013052.782.49$159,026
May 20193,675058.482.74$214,914
Apr 20193,523062.632.75$220,645
Mar 20195,251056.803.06$298,257
Feb 20196,250050.852.79$317,813
Jan 20199,422046.033.23$433,695
Dec 20184,449046.594.19$207,279
Nov 20181,157052.934.24$61,240

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                1,219 bbl  × $106.41 =   $129,714
Casinghead gas       766 Mcf  × $  3.05 =     $2,333

────────────────────────────────────────────────────
Month total                                 $132,047

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. 08/O/51933 is the state's own key, not one this site invented.