Sierra County, New Mexico Wells Summary
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Total wells
Drill activity
Sierra County contains 31 wells on file, with top operators including PRE-ONGARD WELL OPERATOR and SHELL OIL CO.
Most recent well on record: PRE-ONGARD WELL #001, operated by PRE-ONGARD WELL OPERATOR — last updated March 2026.
County FIPS Code: 35051
Active drilling rigs · Baker Hughes snapshot, week of 2026-09-04
By basin
- 90 Permian
- 5 Other
Drilling for
- 90 Oil
- 4 Gas
- 1 Miscellaneous
Sierra County well density
Every dot is one well — small blue dots are historic wells;
larger orange dots are wells with activity in the last 60 days.
31 wells plotted ·
0 active in last 60 days
Basemap © OpenStreetMap contributors · well data © Oil and Gas Information · tiles served by DynamoMap
Top Counties in New Mexico most active by total wells
Compare Sierra against the other busiest counties in New Mexico:
Recent wells
| Well Name | Last activity | Updates | Operator | API |
|---|---|---|---|---|
| PRE-ONGARD WELL #001 | 2026-03-18 | PRE-ONGARD WELL OPERATOR | 30-051-00028 | |
| PRE-ONGARD WELL #001 | 2026-03-18 | PRE-ONGARD WELL OPERATOR | 30-051-00019 | |
| PRE-ONGARD WELL #001 | 2026-03-18 | PRE-ONGARD WELL OPERATOR | 30-051-00007 | |
| PRE-ONGARD WELL #001 | 2026-03-18 | PRE-ONGARD WELL OPERATOR | 30-051-20009 | |
| PRE-ONGARD WELL #001 | 2026-03-18 | PRE-ONGARD WELL OPERATOR | 30-051-00001 | |
| PRE-ONGARD WELL #002 | 2026-03-18 | PRE-ONGARD WELL OPERATOR | 30-051-00015 | |
| PRE-ONGARD WELL #003 | 2026-03-18 | PRE-ONGARD WELL OPERATOR | 30-051-20004 | |
| PRE-ONGARD WELL #001 | 2026-03-18 | PRE-ONGARD WELL OPERATOR | 30-051-20005 | |
| PRE-ONGARD WELL #005 | 2026-03-18 | PRE-ONGARD WELL OPERATOR | 30-051-20007 | |
| LEEMAN FEDERAL #001 | 2026-03-18 | SHELL OIL CO | 30-051-20011 |