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CARLA EAST A

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 20197District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$30.8 M
Dec 2018 – May 2026
Value, last 12 filed months
$1.5 M
at the published price for each month
Months reported
90
no gaps in the span
Streams
2
oil, casinghead gas

The SPRABERRY (TREND AREA) 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 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
OilDisposition352,634 bbl$21,261,474
Casinghead gasProduction2,904,139 Mcf$9,571,413
Total$30,832,887

Wells on this lease (5)

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 31.6002, -101.5690. A lease has no coordinate of its own — that point is the mean of its wells, and they span 36.8 miles, so treat it as the lease's centre and not as its location.

31.54366, -101.75149 · 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
80.0%
4 of 5 wells
With a plug date
80.0%
4 of 5 wells
Median depth
7,825 ft
5 wells filed one
Completion to plug
28.8 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
480.0%
A plug date is filed
480.0%
BothOn the schedule and plugged. Neither fact cancels the other.
480.0%
NeitherNo plug date, and not on the schedule.
120.0%

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 7,790 and 9,364 ft, median 7,825 ft, over the 5 wells that filed a depth.

Completions filed
May 1966 – Dec 2018
5 of 5 wells
Plug dates filed
May 1993 – May 2009
4 of 5 wells; 1 filed none

Last completion to plug: a median of 28.8 years across the 4 wells that filed both dates, with the middle half between 25.8 years and 30.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

5 wells

42-461408076202BH9,364 ftDec 2018——
42-3833046047,825 ftOct 1974May 1993Yes
42-3833046137,800 ftOct 1974May 2009Yes
42-3833046227,790 ftSep 1974Dec 2002Yes
42-3831075418,160 ftMay 1966Jul 1995Yes

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 (90)

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

90 months

May 202653319,115106.413.05$114,938
Apr 202654020,27398.932.87$111,600
Mar 202661818,74289.753.15$114,492
Feb 202670415,78563.503.75$103,903
Jan 202659121,22159.138.00$204,670
Dec 202543814,87856.664.41$90,479
Nov 20254795,59558.593.93$50,033
Oct 202572725,33959.383.30$126,911
Sep 202578027,82762.743.08$134,559
Aug 202593626,28263.933.01$139,072
Jul 202596124,37466.743.32$144,942
Jun 202592027,28566.483.13$146,529
May 20251,05927,03460.553.23$151,505
Apr 20251,03729,90662.363.54$170,628
Mar 202574828,51167.704.27$172,334
Feb 20251,11240,53170.884.34$254,757
Jan 20251,37541,16074.324.28$278,300
Dec 20241,29718,26868.993.12$146,501
Nov 20241,11423,14669.052.20$127,807
Oct 20241,49928,21771.372.28$171,358
Sep 20241,88931,48969.612.36$205,945
Aug 20241,60033,75475.632.06$190,664
Jul 20241,91338,66979.932.15$235,913
Jun 20241,75537,29578.082.63$235,265
May 20242,110078.812.20$166,289
Apr 20242,17232,83184.451.66$237,899
Mar 20242,17439,31980.301.55$235,325
Feb 20242,08536,99276.091.78$224,628
Jan 20242,13437,40573.023.30$279,174
Dec 20232,31041,87171.262.61$273,924
Nov 20232,18433,18277.892.81$263,272
Oct 20232,24032,43185.443.09$291,509
Sep 20231,84432,68289.042.74$253,576
Aug 20232,19540,10080.522.67$283,924
Jul 20232,00238,96574.852.64$252,787
Jun 20232,33537,06368.962.26$244,728
May 20232,69535,92570.622.23$270,340
Apr 20232,41532,20478.122.24$260,725
Mar 20232,43432,77072.852.39$255,741
Feb 20232,66328,96375.112.47$271,431
Jan 20232,87333,31876.533.39$332,743
Dec 20222,26222,20476.415.73$300,048
Nov 20222,70516,52085.005.65$323,200
Oct 20222,24213,74887.185.86$276,073
Sep 20222,12613,62484.888.16$291,677
Aug 20222,74121,65194.529.13$456,691
Jul 20222,00325,496101.587.54$395,758
Jun 20222,74035,393115.097.98$597,684
May 20222,99637,021109.378.43$639,872
Apr 20222,84132,878104.226.84$520,896
Mar 20222,59926,304108.885.08$416,509
Feb 20222,58126,83491.054.86$365,382
Jan 20222,70129,67281.844.54$355,692
Dec 20213,02432,97271.323.90$344,233
Nov 20213,04332,08677.435.24$403,649
Oct 20213,61133,91879.795.71$481,925
Sep 20212,90735,00269.865.35$390,376
Aug 20213,26634,00566.024.22$359,142
Jul 20213,50631,01470.783.98$371,655
Jun 20213,24532,22569.493.38$334,436
May 20213,66133,60663.483.02$333,812
Apr 20213,98134,74260.362.76$336,126
Mar 20214,48736,74361.302.72$374,882
Feb 20212,91322,18557.805.55$291,453
Jan 20213,82534,51450.412.81$289,812
Dec 20203,56635,68044.642.68$254,647
Nov 20203,97235,40138.772.71$249,810
Oct 20203,45335,76936.972.48$216,308
Sep 20203,18733,87337.091.99$185,648
Aug 20203,23335,51939.982.39$213,972
Jul 20203,65237,10538.371.83$207,848
Jun 20203,60837,07434.901.69$188,586
May 20203,23035,57716.921.81$119,215
Apr 20203,41333,31014.751.80$110,446
Mar 20203,50837,66230.341.86$176,342
Feb 20203,50436,43749.881.98$246,949
Jan 20204,01940,09457.252.09$314,074
Dec 20194,85544,24959.012.30$388,459
Nov 20194,84545,52755.302.75$393,160
Oct 20197,05551,20853.472.42$501,079
Sep 20198,28448,80055.052.66$585,709
Aug 20199,14947,74953.112.30$595,934
Jul 201910,62348,97856.272.46$718,245
Jun 201911,24249,02252.782.49$715,476
May 201913,41256,63058.482.74$939,518
Apr 201915,11556,80062.632.75$1,102,892
Mar 201920,35858,43456.803.06$1,335,265
Feb 201921,45828,22050.852.79$1,169,936
Jan 201920,89021,83346.033.23$1,032,048
Dec 201827,50728,11446.594.19$1,399,221

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                  533 bbl  × $106.41 =    $56,717
Casinghead gas    19,115 Mcf  × $  3.05 =    $58,221

────────────────────────────────────────────────────
Month total                                 $114,938

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/20197 is the state's own key, not one this site invented.