BBakken SubsurfaceNorth Dakota well index

NDIC file 40680 · API 33-105-06211-00-00

Ongstad 5795 13-15 2B

Operated by OASIS PETROLEUM NORTH AMERICA LLC · Williams County, North Dakota

Active (A)Oil and gasSpud 2024

Well facts

Operator
OASIS PETROLEUM NORTH AMERICA LLC
Status
Active (A)
Well type
Oil and gas (OG)
Field
TIOGA
Spud date
Total depth
20,293 ft
Legal location
NWNE Sec 15 T157N R95W
Footages
447 ft FNL · 2,580 ft FEL
County
Williams County
NDIC file no.
40680
API no.
33-105-06211-00-00

Location & navigation

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48.42924, -102.93969

Published surface location (NAD83). A horizontal well's lateral can run up to three miles from this point.

See it in 3D

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Production

20 months reported, Jan 2025 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil100KbblJan ’25 to Aug ’26 · 15 of 20 months known
Peak oil rate529bbl/dJun 2025 · 15,856 bbl in 30 days
Oil, last 12 months63.4Kbbl12 of 12 months known
Gas–oil ratio, last 12 months3,122scf/bblfirst year 2,518 scf/bbl
Water cut, last 12 months69%first year 67% · 216K bbl water in all
Gas sold, last 12 months94%of gas produced · 11.6K mcf reported flared
0200400600Oil bbl/d120Jan ’25Mar ’25May ’25Jul ’25Sep ’25Nov ’25Jan ’26Mar ’26May ’26Jul ’26

Early time

First reported month
Jan 2025
Months to peak
6 (Jun 2025)
Peak month rate
529 bbl/d on 30 days
First 3 months, oil
—
First 6 months, oil
15,856 bbl (1 of 6 known)
First 12 months, oil
65,503 bbl (7 of 12 known)
Share of cumulative in year 1
65%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
120 bbl/d
Latest rate as share of peak
22.7%
Uptime, last 12 months
98% of days
Cumulative gas
288K mcf
Cumulative water
216K bbl
Unknown months
5 of 20 (confidential or not in that month's report)
Pools reported
BAKKEN, CONFIDENTIAL
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
8,27521,01716,052302762,54066%
7,60120,07614,619312452,64166%
7,02617,92813,768302342,55266%
5,66615,90113,985291952,80671%
5,66917,17913,421311833,03070%
4,27613,8309,951281533,23470%
3,6009,5607,486291242,65668%
4,04010,4219,324251622,57970%
5,28620,67813,554311713,91272%
4,48020,72211,433301494,62572%
3,75315,04010,134311214,00773%
3,72715,5889,800311204,18272%

As first reported to NDIC in each month's report (NDIC Monthly Production Reports, Jan 2003 to Aug 2026). Operators amend past months later and the published reports are not updated, so a month can differ from the current record. A blank or missing month is unknown, not zero, and a cumulative over such months is a lower bound; two pools reported in one month are summed. Rates per producing day divide the month's volume by the days reported, so a month reported without producing days has no rate. Gas–oil ratio is gas produced over oil produced; water cut is water over oil plus water. Months from Jan 2003 to Apr 2015 are read from the Division's PDF reports, which print no flared gas and list a well in a unitized pool only inside its unit's total.

Spacing units

Units whose published footprint holds at least 660 ft of this well's surveyed lateral. Allowances are facts extracted from signed NDIC orders, machine-extracted and not human-reviewed.

Nearby wells

Closest published well heads within 3 miles; wells on one pad share a location.

Other published attributes (1)
symbolA-OG

DMR shapefile columns not shown above, unchanged.