BIG LAKE (SPRABERRY) UNIT

Name: BIG LAKE (SPRABERRY) UNIT lease production and value, Jan 1993 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by CHEVRON MIDCONTINENT, L.P. (P-5 147862) 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 12675District 7CField 85279200OilCasinghead gasSave Export

Value, all time

$1.3 M

Jan 1993 – Feb 2009

Value, last 12 filed months

at the published price for each month

Months reported

194

no gaps in the span

Streams

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.

Stream	Basis	Volume	Value
Oil	Disposition	57,103 bbl	$1,098,721
Casinghead gas	Production	141,786 Mcf	$193,588
Total			$1,292,309

87,009 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 (15)

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 31.2737, -101.5689. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.5 miles.

31.27315, -101.56802 · centre of the wells drawn, derived⌘ or Ctrl + scroll to zoom

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

100.0%

15 of 15 wells

With a plug date

100.0%

15 of 15 wells

Median depth

7,575 ft

15 wells filed one

Completion to plug

17.6 years

median over 15 wells

What the state filed about each well

On the RRC proration schedule

15100.0%

A plug date is filed

15100.0%

BothOn the schedule and plugged. Neither fact cancels the other.

15100.0%

NeitherNo plug date, and not on the schedule.

00.0%

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

Total depth in feet, 15 of 15 wells. Median 7,575 ft, with the middle half between 7,575 and 7,676 ft; the shallowest is 7,525 ft and the deepest 7,706 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 15 of 15 wells, Aug 1977 – Jun 1989. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed

Aug 1977 – Jun 1989

15 of 15 wells

Plug dates filed

Oct 1992 – May 2008

15 of 15 wells

Last completion to plug: a median of 17.6 years across the 15 wells that filed both dates, with the middle half between 16.3 years and 21.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

15 wells


42-38331248	10	7,675 ft	Jun 1989	Feb 1996	Yes
42-38331345	13	7,525 ft	Sep 1979	Jul 1999	Yes
42-38331247	9	7,706 ft	Sep 1978	Mar 1996	Yes
42-38331236	7	7,700 ft	Sep 1978	Mar 1996	Yes
42-38331250	14	7,665 ft	Sep 1978	Feb 1996	Yes
42-38331234	8	7,677 ft	Sep 1978	Jul 1998	Yes
42-38331251	2	7,575 ft	Aug 1978	Jul 1999	Yes
42-38331249	15	7,700 ft	Aug 1978	Mar 1996	Yes
42-38331235	1	7,657 ft	Aug 1978	Oct 1992	Yes
42-38331217	5	7,575 ft	Aug 1978	Jan 2000	Yes
42-38331215	4	7,575 ft	Jul 1978	Jul 2005	Yes
42-38331196	6	7,575 ft	Jul 1978	Oct 1993	Yes
42-38331216	3	7,575 ft	Apr 1978	May 2008	Yes
42-38331199	12	7,550 ft	Mar 1978	Oct 1992	Yes
42-38331159	11	7,575 ft	Aug 1977	Aug 1998	Yes

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 (194)

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

194 months


Feb 2009	0	0	32.81	4.63	$0
Jan 2009	0	0	35.86	5.37	$0
Dec 2008	0	0	37.10	5.98	$0
Nov 2008	0	0	55.49	6.86	$0
Oct 2008	0	0	75.24	6.92	$0
Sep 2008	0	0	101.76	7.88	$0
Aug 2008	0	0	114.22	8.48	$0
Jul 2008	0	0	131.08	11.39	$0
Jun 2008	0	0	131.33	13.03	$0
May 2008	0	0	123.17	11.57	$0
Apr 2008	0	0	110.31	10.45	$0
Mar 2008	0	0	101.90	9.66	$0
Feb 2008	0	0	92.53	8.77	$0
Jan 2008	0	0	90.38	8.21	$0
Dec 2007	0	0	88.33	7.30	$0
Nov 2007	0	0	91.67	7.29	$0
Oct 2007	0	0	82.85	6.92	$0
Sep 2007	0	0	75.84	6.24	$0
Aug 2007	0	0	69.06	6.39	$0
Jul 2007	0	0	70.90	6.39	$0
Jun 2007	0	0	62.00	7.55	$0
May 2007	0	0	58.74	7.85	$0
Apr 2007	0	0	59.61	7.81	$0
Mar 2007	0	0	56.92	7.30	$0
Feb 2007	0	0	55.10	8.22	$0
Jan 2007	0	0	50.30	6.73	$0
Dec 2006	0	0	56.65	6.92	$0
Nov 2006	0	0	54.20	7.62	$0
Oct 2006	0	0	54.90	6.01	$0
Sep 2006	0	0	60.08	5.04	$0
Aug 2006	0	0	68.71	7.34	$0
Jul 2006	0	0	69.37	6.34	$0
Jun 2006	122	0	66.28	6.38	$8,086
May 2006	0	0	66.01	6.42	$0
Apr 2006	64	0	64.39	7.36	$4,121
Mar 2006	0	34	56.70	7.08	$241
Feb 2006	228	54	57.59	7.75	$13,549
Jan 2006	0	153	60.59	8.93	$1,367
Dec 2005	302	180	54.94	13.42	$19,007
Nov 2005	0	371	54.69	10.59	$3,928
Oct 2005	0	0	58.34	13.80	$0
Sep 2005	0	54	61.45	12.08	$652
Aug 2005	0	220	61.51	9.80	$2,155
Jul 2005	375	112	55.69	7.84	$21,762
Jun 2005	0	152	52.33	7.38	$1,122
May 2005	0	127	45.22	6.65	$845
Apr 2005	0	226	49.20	7.36	$1,663
Mar 2005	0	137	50.37	7.15	$980
Feb 2005	419	171	45.22	6.31	$20,027
Jan 2005	0	291	43.16	6.32	$1,840
Dec 2004	0	251	39.86	6.75	$1,695
Nov 2004	0	192	45.28	6.33	$1,215
Oct 2004	0	245	49.70	6.52	$1,596
Sep 2004	349	257	43.24	5.28	$16,449
Aug 2004	0	215	42.37	5.55	$1,193
Jul 2004	0	273	38.28	6.08	$1,661
Jun 2004	448	324	36.10	6.43	$18,257
May 2004	0	326	37.48	6.49	$2,117
Apr 2004	0	89	34.47	5.86	$521
Mar 2004	0	463	34.36	5.53	$2,560
Feb 2004	0	399	32.45	5.51	$2,198
Jan 2004	0	436	32.03	6.30	$2,747
Dec 2003	406	403	30.26	6.30	$14,825
Nov 2003	0	273	28.80	4.60	$1,254
Oct 2003	0	262	28.17	4.76	$1,247
Sep 2003	0	239	26.31	4.75	$1,135
Aug 2003	0	415	29.76	5.13	$2,129
Jul 2003	457	290	29.41	5.17	$14,940
Jun 2003	0	270	28.56	5.98	$1,615
May 2003	0	396	26.59	5.97	$2,365
Apr 2003	0	381	26.67	5.41	$2,060
Mar 2003	0	428	31.14	6.10	$2,609
Feb 2003	359	298	33.48	7.93	$14,381
Jan 2003	0	299	30.31	5.58	$1,669
Dec 2002	0	273	26.91	4.85	$1,325
Nov 2002	462	436	24.66	4.14	$13,197
Oct 2002	0	500	26.46	4.23	$2,115
Sep 2002	0	643	27.44	3.64	$2,337
Aug 2002	464	549	25.96	3.16	$13,783
Jul 2002	0	443	24.58	3.06	$1,356
Jun 2002	0	463	23.73	3.34	$1,546
May 2002	450	348	24.66	3.58	$12,344
Apr 2002	0	336	23.65	3.51	$1,180
Mar 2002	0	354	22.00	3.10	$1,098
Feb 2002	449	319	18.22	2.38	$8,939
Jan 2002	0	165	17.17	2.38	$392
Dec 2001	432	267	16.93	2.36	$7,945
Nov 2001	0	227	18.07	2.41	$546
Oct 2001	0	352	19.78	2.53	$890
Sep 2001	450	376	24.26	2.25	$11,764
Aug 2001	0	438	24.87	3.05	$1,337
Jul 2001	0	518	23.93	3.20	$1,656
Jun 2001	387	543	24.56	3.82	$11,581
May 2001	0	543	25.52	4.31	$2,339
Apr 2001	443	482	24.68	5.34	$13,505
Mar 2001	0	459	24.54	5.38	$2,468
Feb 2001	0	349	27.75	5.77	$2,013
Jan 2001	431	351	27.47	8.40	$14,788
Dec 2000	0	270	26.88	9.12	$2,463
Nov 2000	472	413	32.21	5.66	$17,540
Oct 2000	0	377	31.23	5.15	$1,940
Sep 2000	0	434	31.87	5.19	$2,251
Aug 2000	462	371	29.64	4.54	$15,378
Jul 2000	0	365	28.53	4.09	$1,493
Jun 2000	0	453	29.30	4.40	$1,992
May 2000	435	572	27.26	3.68	$13,963
Apr 2000	0	565	24.51	3.12	$1,761
Mar 2000	448	538	28.42	2.86	$14,271
Feb 2000	0	533	27.62	2.73	$1,453
Jan 2000	0	411	25.27	2.48	$1,019
Dec 1999	518	409	24.28	2.42	$13,568
Nov 1999	0	381	23.19	2.43	$927
Oct 1999	466	412	20.98	2.80	$10,932
Sep 1999	0	412	21.75	2.62	$1,079
Aug 1999	0	526	19.26	2.88	$1,513
Jul 1999	465	462	17.89	2.37	$9,415
Jun 1999	0	458	15.94	2.36	$1,082
May 1999	478	533	15.79	2.32	$8,785
Apr 1999	326	460	15.10	2.21	$5,938
Mar 1999	0	460	12.47	1.84	$846
Feb 1999	0	394	9.98	1.82	$716
Jan 1999	454	607	10.38	1.90	$5,866
Dec 1998	444	876	9.20	1.77	$5,638
Nov 1998	462	1,084	10.89	2.19	$7,401
Oct 1998	0	1,081	12.42	1.97	$2,129
Sep 1998	455	711	12.59	2.08	$7,209
Aug 1998	462	1,008	11.30	1.91	$7,143
Jul 1998	441	1,064	11.74	2.24	$7,558
Jun 1998	466	995	11.24	2.24	$7,464
May 1998	457	777	12.62	2.21	$7,482
Apr 1998	472	716	13.04	2.51	$7,949
Mar 1998	466	782	12.80	2.31	$7,771
Feb 1998	0	546	13.95	2.30	$1,255
Jan 1998	1,363	827	14.70	2.15	$21,818
Dec 1997	469	911	16.32	2.41	$9,851
Nov 1997	400	991	18.19	3.09	$10,336
Oct 1997	463	1,151	19.25	3.15	$12,538
Sep 1997	453	1,144	17.74	2.95	$11,417
Aug 1997	859	1,470	17.86	2.55	$19,097
Jul 1997	468	772	17.58	2.25	$9,962
Jun 1997	440	1,002	17.24	2.26	$9,847
May 1997	916	1,441	18.97	2.31	$20,703
Apr 1997	0	1,239	17.88	2.08	$2,581
Mar 1997	932	1,228	18.95	1.94	$20,043
Feb 1997	0	1,339	20.49	2.21	$2,954
Jan 1997	622	1,366	23.48	3.54	$19,440
Dec 1996	1,234	1,333	23.32	—	$28,777
Nov 1996	0	1,161	21.97	—	$0
Oct 1996	937	1,368	23.31	—	$21,841
Sep 1996	467	1,373	22.22	—	$10,377
Aug 1996	317	1,305	20.26	—	$6,422
Jul 1996	910	1,544	19.55	—	$17,791
Jun 1996	0	1,428	18.73	—	$0
May 1996	759	1,551	19.43	—	$14,747
Apr 1996	797	1,607	21.51	—	$17,143
Mar 1996	470	1,258	19.38	—	$9,109
Feb 1996	636	1,399	16.98	—	$10,799
Jan 1996	1,359	1,318	17.07	—	$23,198
Dec 1995	939	1,843	17.19	—	$16,141
Nov 1995	0	1,940	16.00	—	$0
Oct 1995	460	2,021	15.43	—	$7,098
Sep 1995	1,766	1,778	16.18	—	$28,574
Aug 1995	0	1,573	15.92	—	$0
Jul 1995	446	1,328	15.24	—	$6,797
Jun 1995	454	1,983	16.41	—	$7,450
May 1995	1,386	2,112	17.56	—	$24,338
Apr 1995	927	2,102	17.73	—	$16,436
Mar 1995	0	2,284	16.44	—	$0
Feb 1995	475	2,174	16.58	—	$7,876
Jan 1995	1,773	2,041	15.92	—	$28,226
Dec 1994	0	2,310	15.03	—	$0
Nov 1994	883	2,295	15.90	—	$14,040
Oct 1994	475	1,766	15.58	—	$7,401
Sep 1994	1,346	2,002	15.29	—	$20,580
Aug 1994	451	1,712	16.13	—	$7,275
Jul 1994	464	1,801	17.56	—	$8,148
Jun 1994	463	1,810	17.09	—	$7,913
May 1994	945	1,855	15.88	—	$15,007
Apr 1994	1,866	2,095	14.14	—	$26,385
Mar 1994	0	2,526	12.46	—	$0
Feb 1994	1,326	1,821	12.50	—	$16,575
Jan 1994	0	1,410	12.66	—	$0
Dec 1993	0	1,362	12.33	—	$0
Nov 1993	1,112	2,142	14.49	—	$16,113
Oct 1993	466	2,208	15.85	—	$7,386
Sep 1993	1,422	2,326	15.03	—	$21,373
Aug 1993	462	2,194	15.66	—	$7,235
Jul 1993	459	1,962	15.46	—	$7,096
Jun 1993	1,527	1,938	16.79	—	$25,638
May 1993	461	2,084	17.68	—	$8,150
Apr 1993	452	1,948	18.05	—	$8,159
Mar 1993	1,252	1,948	18.14	—	$22,711
Feb 1993	1,228	1,676	17.90	—	$21,981
Jan 1993	0	1,994	16.93	—	$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.

Jun 2006 — as filed, then multipliedworked

Oil                  122 bbl  × $ 66.28 =     $8,086
Casinghead gas         0 Mcf  × $  6.38 =         $0

────────────────────────────────────────────────────
Month total                                   $8,086

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/12675 is the state's own key, not one this site invented.