Petroleum County, Montana property search
Search an address or an owner in Petroleum County, Montana with the box at the top of the map, or tap a lot, for its owner, lines and acreage. 4,523 lots are mapped here, covering 1,061,711 acres. 1,211 of them are held by institutions rather than by individuals.
Farmers and landowners in Petroleum County received $736,000 in federal farm program payments in 2025, paid to 22 recipients. Crop insurance paid $463,000 in claims for the 2024 crop year.
- 4,523
- Lots mapped
- 1,061,711
- Acres
- 1,211
- Institutional
Land use in Petroleum County
Parcels and acreage by land use in Petroleum County, Montana| Land use | Parcels | Acres |
|---|
| Vacant Land | 2,727 | 553,261 |
|---|
| Exempt Property | 1,390 | 452,132 |
|---|
| Improved Property | 366 | 53,392 |
|---|
| CN - Centrally Assessed Non-Valued Property | 4 | 2 |
|---|
| Apartment | 3 | 1 |
|---|
| Mobile/RV Parks | 2 | 3 |
|---|
| CA - Centrally Assessed | 1 | 0 |
|---|
| Non-Valued Property | 1 | 2 |
|---|
| Partial Exempt Property | 1 | 1 |
|---|
Largest landowners in Petroleum County
Largest landowners by acreage in Petroleum County, Montana| Owner | Parcels | Acres |
|---|
| STATE OF MONTANA DNRC | 87 | 38,073 |
|---|
| FLAT WILLOW FARM LLC | 72 | 31,704 |
|---|
| STATE OF MONTANA | 46 | 25,972 |
|---|
| TWIN CREEKS FARM & RANCH LLC | 58 | 19,828 |
|---|
| WALKING SEVEN INC | 59 | 18,140 |
|---|
| LEK RANCH LLC | 62 | 15,602 |
|---|
| FLOWEREE LAND & CATTLE COMPANY LLC | 37 | 14,217 |
|---|
| LUND # RANCH INC | 37 | 14,029 |
|---|
| CHAIN BUTTES GRAZING DISTRICT | 59 | 13,821 |
|---|
| KING JOE C & SONS INC | 72 | 13,655 |
|---|
Companies, trusts and public agencies, ranked by acres held under the name on the assessor's file. Private individuals are not ranked. Largest landowners in Montana
Federal farm payments in Petroleum County
- $736K
- Paid in 2025
- 22
- Recipients
Federal farm program payments by program in Petroleum County, Montana, 2025| Program | Paid |
|---|
| Emergency Commodity Assistance Program | $370K |
|---|
| Supplemental Disaster Relief Non-Spec Crops | $169K |
|---|
| CRP Payment - Annual Rental | $132K |
|---|
| NAP Regular Web-Based | $56K |
|---|
| Non-Insured Assistance Program | $8K |
|---|
| Emergency Livestock Relief Program - Caa | $153 |
|---|
USDA Farm Service Agency payment files, 2025. Compare farm subsidies by county
Crop insurance in Petroleum County
- 25
- Policies
- 45,881
- Insured acres
- $463K
- Claims paid
- 0.70
- Loss ratio
Crop insurance claims by crop in Petroleum County, Montana, 2024| Crop | Claims |
|---|
| Wheat | $332K |
|---|
| All Other Crops | $50K |
|---|
| Pasture,Rangeland,Forage | $41K |
|---|
| Forage Production | $40K |
|---|
USDA Risk Management Agency Summary of Business, 2024 crop year.
Conservation and the power grid
- 16,796
- CRP acres, 2025
- 6
- Substations
- 69 kV
- Highest voltage
Conservation Reserve Program acres under contract (USDA FSA). Substations in service, from a public copy of the federal HIFLD layer.
Find out who owns a property in Petroleum County by address, free, or work out a lot's acreage.
Petroleum County last published these records on August 4, 2026. Assessment records, not a survey.