World Energy

Field D&C Days QA/QC

Bore-by-bore drilling & completion days behind the World Oil April 2026 reconciliation — 253 wellbores across 11 Gulf of Mexico developments, with drilling-day stability proven across data vintages. Browse the interactive drill-down: /capabilities/dc-drilldown.html

Reconciliation Matrix

Development	Bores Wed	Drilling Days	Completion Days	Dc Days Wed	Dc Days Article	Delta Days	Status	Bores Article	Producers Wed	Producers Article
Anchor	17	821	1,004	1,825	1,825	0	exact	17	3	3
Buckskin	25	1,043	1,013	2,056	2,004	52	recovered — +1 bore / +52 days vs article (was missing entirely)	24	—	4
Cascade Chinook	14	1,205	1,262	2,467	2,467	0	exact	14	3	3
Jack St Malo	73	3,065	3,982	7,047	6,928	119	open — +119 days, suspect post-TD completion over-count (#846)	73	24	24
Julia	9	802	885	1,687	1,687	0	exact	9	4	4
Kaskida	7	556	285	841	841	0	exact	7	—	0
North Platte	23	675	296	971	971	0	days exact; +3 zero-day sidetracks	20	—	0
Shenandoah	23	1,363	1,007	2,370	2,346	24	resolved — +24 recompletion-accounting days (frozen V30 was −357)	23	4	4
Stones	22	1,457	1,168	2,625	2,625	0	exact vs article; +20 post-cutoff well-servicing days	22	10	10
Tiber	2	214	36	250	250	0	exact	2	—	0
Big Foot	38	1,235	2,030	3,265	—	—	WED-only — excluded from the article's Table 1	—	8	—

Per-Well Listing

Development	Api12	Spud	Td Date	Drilling Days	Completion Days	Dc Days	Sidetrack	Producer	Bore	Lease Name	Lease Num	Note	Water Depth ft	Max Md ft	Max TVD ft	Max Mud ppg	Vintage Category
Anchor	608114062100	2014-03-16	2014-05-17	62	15	77	false	false	001	Anchor	G31752	—	5,080	15,356	15,356	17	unchanged
Anchor	608114062101	2014-05-28	2014-06-14	17	59	76	true	false	001	Anchor	G31752	—	5,080	25,800	25,797	17	unchanged
Anchor	608114063500	2014-08-12	2014-11-28	108	65	173	false	false	002	Anchor	G31752	—	5,080	33,750	33,749	16.8	unchanged
Anchor	608114063501	2015-07-09	2015-07-28	19	19	38	true	false	002	Anchor	G31752	—	5,080	33,400	33,397	16.2	unchanged
Anchor	608114063502	2015-08-14	2015-09-11	28	36	64	true	false	002	Anchor	G31752	—	5,080	35,210	34,094	16.6	unchanged
Anchor	608114066100	2016-01-26	2016-02-11	16	17	33	false	false	001	Anchor	G31751	—	5,080	11,249	11,249	17	unchanged
Anchor	608114066101	2016-02-26	2016-06-18	113	49	162	true	false	001	Anchor	G31751	—	5,080	34,022	33,910	18.5	unchanged
Anchor	608114067300	2016-09-17	2016-11-07	51	34	85	false	false	003	Anchor	G31752	—	5,080	28,642	28,359	16.8	unchanged
Anchor	608114067301	2016-12-04	2017-01-24	51	33	84	true	false	003	Anchor	G31752	—	5,080	33,660	33,046	16.6	unchanged
Anchor	608114072800	2019-11-19	2019-11-26	7	2	9	false	false	SB001	Anchor	G31752	—	5,080	5,441	5,441	12.1	unchanged
Anchor	608114075000	2021-12-08	2022-03-14	96	260	356	false	true	AP001	Anchor	G31752	—	5,080	33,550	33,399	19.1	unchanged
Anchor	608114075100	2022-11-16	2023-02-06	82	139	221	false	true	AP002	Anchor	G31752	—	5,080	33,683	33,367	17.5	unchanged
Anchor	608114077400	2023-11-26	2024-05-15	171	276	447	false	false	BP003	Anchor	G31751	—	5,080	34,184	33,539	19	unchanged
Anchor	608114076100	—	—	0	0	0	false	false	AP004	Anchor	G31752	—	5,080	—	—	—	unchanged
Anchor	608114076101	—	—	0	0	0	true	true	AP004	Anchor	G31752	—	5,080	—	—	—	wed_only
Anchor	608114076900	—	—	0	0	0	false	false	AP005	Anchor	G31752	—	5,080	—	—	—	unchanged
Anchor	608114079600	—	—	0	0	0	false	false	BP006	Anchor	G31751	—	5,080	—	—	—	wed_only
Buckskin	608084001600	2008-09-03	2008-11-25	83	5	88	false	false	001	Buckskin	G25823	—	6,800	28,404	28,403	16.5	wed_only
Buckskin	608084001601	2008-11-26	2009-01-20	55	16	71	true	false	001	Buckskin	G25823	—	6,800	29,404	29,402	16.5	wed_only
Buckskin	608084002100	2011-05-16	2011-09-13	120	45	165	false	false	001	Buckskin	G25806	—	6,800	28,000	27,999	16.9	wed_only
Buckskin	608084003100	2013-03-26	2013-08-26	153	20	173	false	false	001	Buckskin	G25814	—	6,800	11,579	11,579	17	wed_only
Buckskin	608084003101	2013-09-10	2013-10-10	30	31	61	true	false	001	Buckskin	G25814	—	6,800	17,520	17,519	17	wed_only
Buckskin	608084003102	2013-11-06	2013-11-25	19	41	60	true	false	001	Buckskin	G25814	—	6,800	19,292	19,287	17.2	wed_only
Buckskin	608084003103	2013-12-31	2014-01-06	6	27	33	true	false	001	Buckskin	G25814	—	6,800	20,458	20,451	17	wed_only
Buckskin	608084003104	2014-01-30	2014-02-08	9	43	52	true	false	001	Buckskin	G25814	—	6,800	19,637	19,630	17	wed_only
Buckskin	608084003105	2014-03-21	2014-05-15	55	52	107	true	false	001	Buckskin	G25814	—	6,800	29,415	28,483	17	wed_only
Buckskin	608084003106	2014-07-02	2014-09-09	69	36	105	true	false	001	Buckskin	G25814	—	6,800	29,387	28,283	16.6	wed_only
Buckskin	608084004700	2014-09-02	2014-10-22	50	11	61	false	false	002	Buckskin	G25806	—	6,800	13,610	13,610	16	wed_only
Buckskin	608084004701	2014-10-27	2014-12-13	47	8	55	true	false	002	Buckskin	G25806	—	6,800	20,562	20,386	16.4	wed_only
Buckskin	608084006000	2018-01-20	2018-03-14	53	11	64	false	false	002	Buckskin	G25814	—	6,800	27,690	27,039	16.6	wed_only
Buckskin	608084006100	2018-01-21	2018-05-24	123	10	133	false	false	003	Buckskin	G25814	—	6,800	26,313	24,342	16.6	wed_only
Buckskin	608084006001	2018-03-22	2018-03-28	6	159	165	true	false	SS002	Buckskin	G25814	—	6,800	29,320	26,488	16.4	wed_only
Buckskin	608084006101	2018-05-31	2018-06-03	3	175	178	true	false	SS003	Buckskin	G25814	—	6,800	28,800	26,698	16.4	wed_only
Buckskin	608084006700	2021-09-20	2021-09-29	9	4	13	false	false	001	Buckskin	G25814	—	6,800	13,073	13,066	16.6	wed_only
Buckskin	608084006701	2021-10-01	2021-10-23	22	64	86	true	false	001	Buckskin	G25814	—	6,800	21,900	21,895	16.6	wed_only
Buckskin	608084006702	2021-12-22	2022-01-13	22	107	129	true	false	SS001	Buckskin	G25814	—	6,800	28,586	28,100	16.6	wed_only
Buckskin	608084007000	2022-10-18	2022-11-25	38	14	52	false	false	002	Buckskin	G32650	—	6,800	29,632	28,782	16.6	wed_only
Buckskin	608084007300	2023-07-28	2023-09-03	37	7	44	false	false	004	Buckskin	G25806	—	6,800	19,992	19,988	16.6	wed_only
Buckskin	608084007301	2023-09-04	2023-10-08	34	127	161	true	false	SS004	Buckskin	G25806	—	6,800	28,725	26,749	16.4	wed_only
Buckskin	608084007200	—	—	0	0	0	false	false	SS005	Buckskin	G25806	—	6,800	—	—	—	wed_only
Buckskin	608084007700	—	—	0	0	0	false	false	001	Buckskin	G25823	—	6,800	—	—	—	wed_only
Buckskin	608084007701	—	—	0	0	0	true	false	003	Buckskin	G25823	—	6,800	—	—	—	wed_only
Cascade Chinook	608124000800	2002-01-31	2002-04-14	73	9	82	false	false	001	Cascade	G16965	—	8,200	26,710	26,685	—	unchanged
Cascade Chinook	608124000801	2002-04-23	2002-05-16	23	22	45	true	false	001	Cascade	G16965	—	8,200	27,929	27,908	—	unchanged
Cascade Chinook	608124001000	2003-01-13	2003-06-19	157	27	184	false	false	001	Chinook	G16997	—	8,900	27,652	27,626	16.15	unchanged
Cascade Chinook	608124001600	2005-03-19	2005-05-29	71	140	211	false	false	002	Cascade	G16965	—	8,200	30,213	28,000	14.5	unchanged
Cascade Chinook	608124001601	2005-10-09	2005-11-24	46	60	106	true	false	002	Cascade	G16965	—	8,200	28,565	26,575	16.8	unchanged
Cascade Chinook	608124003800	2008-11-06	2009-06-03	209	245	454	false	false	CA003	Cascade	G16965	—	8,200	27,019	26,804	15.6	unchanged
Cascade Chinook	608124004700	2009-11-25	2012-03-28	176	18	194	false	false	004	Cascade	G16965	—	8,200	19,400	19,348	16.4	unchanged
Cascade Chinook	608124004600	2009-11-27	2009-12-22	25	19	44	false	false	002	Chinook	G16997	—	8,900	21,695	21,671	16.5	unchanged

Showing 50 of 253 rows — full table on Hugging Face.

Vintage Diff (Drilling Stability)

Dev	Api12	Category	Drill V30	Drill Wed	D Drill	D Compl	Compl V30	Compl Wed	Spud Wed
Anchor	608114062100	unchanged	62	62	0	0	15	15	03/16/2014
Anchor	608114062101	unchanged	17	17	0	0	59	59	05/28/2014
Anchor	608114063500	unchanged	108	108	0	0	65	65	08/12/2014
Anchor	608114063501	unchanged	19	19	0	0	19	19	07/09/2015
Anchor	608114063502	unchanged	28	28	0	0	36	36	08/14/2015
Anchor	608114066100	unchanged	16	16	0	0	17	17	01/26/2016
Anchor	608114066101	unchanged	113	113	0	0	49	49	02/26/2016
Anchor	608114067300	unchanged	51	51	0	0	34	34	09/17/2016
Anchor	608114067301	unchanged	51	51	0	0	33	33	12/04/2016
Anchor	608114072800	unchanged	7	7	0	0	2	2	11/19/2019
Anchor	608114075000	unchanged	96	96	0	0	260	260	12/08/2021
Anchor	608114075100	unchanged	82	82	0	0	139	139	11/16/2022
Anchor	608114076100	unchanged	0	0	0	0	0	0	—
Anchor	608114076101	wed_only	0	0	0	0	0	0	—
Anchor	608114076900	unchanged	0	0	0	0	0	0	—
Anchor	608114077400	unchanged	171	171	0	0	276	276	11/26/2023
Anchor	608114079600	wed_only	0	0	0	0	0	0	—
Big Foot	608124001900	unchanged	2	2	0	0	9	9	07/26/2005
Big Foot	608124002000	unchanged	115	115	0	0	37	37	08/09/2005
Big Foot	608124002001	unchanged	14	14	0	0	7	7	01/01/2006
Big Foot	608124002002	unchanged	2	2	0	0	11	11	01/15/2006
Big Foot	608124002003	unchanged	35	35	0	0	38	38	03/23/2006
Big Foot	608124002004	unchanged	7	7	0	0	21	21	06/03/2006
Big Foot	608124002005	unchanged	38	38	0	0	30	30	11/25/2008
Big Foot	608124002300	unchanged	92	92	0	0	14	14	11/03/2006
Big Foot	608124002301	unchanged	34	34	0	0	21	21	10/15/2007
Big Foot	608124002302	unchanged	41	41	0	0	22	22	12/04/2007
Big Foot	608124005900	unchanged	0	0	0	0	0	0	—
Big Foot	608124006000	unchanged	76	76	0	0	138	138	12/10/2011
Big Foot	608124006001	unchanged	15	15	0	0	156	156	03/10/2019
Big Foot	608124006200	unchanged	126	126	0	0	265	265	04/03/2012
Big Foot	608124006300	unchanged	0	0	0	0	0	0	—
Big Foot	608124006301	unchanged	0	0	0	0	0	0	—
Big Foot	608124006302	unchanged	13	13	0	0	168	168	07/11/2024
Big Foot	608124006400	unchanged	0	0	0	0	0	0	—
Big Foot	608124006401	unchanged	0	0	0	0	0	0	—
Big Foot	608124006402	unchanged	0	0	0	0	0	0	—
Big Foot	608124006403	unchanged	0	0	0	0	0	0	—
Big Foot	608124006404	late_data	0	28	28	123	0	123	05/06/2025
Big Foot	608124006500	unchanged	63	63	0	0	86	86	05/23/2012
Big Foot	608124006600	unchanged	112	112	0	0	38	38	04/12/2012
Big Foot	608124006601	unchanged	0	0	0	0	22	22	01/04/2020
Big Foot	608124006602	unchanged	11	11	0	0	17	17	01/19/2020
Big Foot	608124006603	servicing_accrual	18	18	0	35	224	259	02/12/2020
Big Foot	608124006700	unchanged	98	98	0	0	102	102	05/17/2012
Big Foot	608124006800	servicing_accrual	118	118	0	46	164	210	01/22/2013
Big Foot	608124006900	unchanged	0	0	0	0	0	0	—
Big Foot	608124007000	unchanged	0	0	0	0	0	0	—
Big Foot	608124007100	unchanged	66	66	0	0	22	22	04/13/2012
Big Foot	608124007101	unchanged	7	7	0	0	16	16	02/05/2021

Showing 50 of 253 rows — full table on Hugging Face.

Source: aceengineer/worldenergydata-explorer on Hugging Face · pipeline

Snapshot: Rendered from a cached snapshot on 2026-07-26; the upstream dataset may have moved since. Use “Refresh to latest” for current data.

Data limits: Drilling days = spud to total depth; completion days = ALL post-TD rig time including later recompletion and servicing (the open worldenergydata#846 boundary question). Known caveat: the extractor mixes calendar days (spans under ~250 d) with WAR-union rig-days (longer spans), so batch-drilled wells undercount drilling days — disclosed rather than corrected pending resolution. Producer markers cover the seven core Lower-Tertiary fields only.