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To find inmate records in Petroleum County, Montana, you can use both online and offline resources. Online, start by visiting the Montana Department of Corrections (DOC) Offender Search portal, which allows you to look up inmates incarcerated in state facilities, including those from Petroleum County. The Petroleum County Sheriff’s Office may also maintain inmate or arrest records; however, the county does not always have an extensive online database. For more detailed or recent records, you can contact the Petroleum County Sheriff’s Office directly, located at 302 East Main Street, Winnett, MT 59087, or call their non-emergency number at (406) 429-6551. Additionally, you can request records at the Petroleum County Courthouse or the Sheriff’s Office in person during regular business hours. Always have relevant details (full name, date of birth) on hand to assist staff in efficiently locating the records you require.

How to Find an Inmate in Petroleum County, MT

Inmate records for Petroleum County, MT are accessible online, but the proper search tool depends on whether the individual is detained in the local jail, a state-run facility, or under federal custody. Use the table below to find the appropriate method for locating inmate information.

Search ToolRecords AvailableAccess MethodKey Details
Montana DOC Inmate LocatorState prison inmatesOffender SearchSearch by name or DOC number for statewide inmates; updated by Montana Department of Corrections.
VINE Inmate SearchCustody status for participating facilitiesVINE MontanaProvides notifications on custody status changes; register for alerts.
Petroleum County Sheriff/JailLocal jail detaineesCall (406) 429-6551 or visit 219 Main St, Winnett, MTPetroleum County Jail does not maintain an online roster; call or visit Sheriff’s Office for info.
Federal BOP Inmate LocatorFederal prison inmatesBOP LocatorNo federal prisons are located in Montana; federal offenders may be housed in neighboring states (e.g., FCI Englewood, CO).
In-Person Records RequestLocal arrest/jail recordsPetroleum Co. Sheriff: 219 Main St, Winnett, MTRequest records in person during business hours; phone: (406) 429-6551.

Booking Process & Common Charges in Petroleum County

After an arrest in Petroleum County, typical booking procedures include transportation to the jail, fingerprinting, photographing, a medical screening, and a housing assignment. The entire process generally takes between 4–8 hours.

Charge CategoryCommon ExamplesFrequencyTypical Hold Duration
DUI / TrafficDriving Under the Influence, License ViolationCommon1–3 days if bail is posted; longer if not
Drug OffensesPossession of Methamphetamine, MarijuanaOccasional1–5 days pre-trial; may vary by charge severity
Assault / Domestic ViolenceSimple Assault, Partner/Family AssaultCommon1–7 days or until bond hearing
Property CrimesTheft, Burglary, Criminal MischiefOccasional2–5 days pre-trial or until court appearance
Failure to AppearMissed Court DateCommonUntil next court date or posting of bail
Outstanding WarrantsLocal or Statewide WarrantsCommonUntil warrant is resolved or transferred
Felony (Pre-Trial)Aggravated Assault, Felony TheftOccasionalHeld until court resolution; sentenced offenders transferred to state facility

Visitation Rules at Petroleum County Jail

Before visiting, please verify the current visitation rules with the Petroleum County Jail, as policies can change at any time. Ensure you are on the inmate's approved visitor list prior to your visit.

Visitation Schedule

DayVisiting HoursVisit TypeNotes
MondayConfirm with facilityIn-personCall jail to confirm hours
TuesdayConfirm with facilityIn-personCall jail to confirm hours
WednesdayConfirm with facilityIn-personCall jail to confirm hours
ThursdayConfirm with facilityIn-personCall jail to confirm hours
FridayConfirm with facilityIn-personCall jail to confirm hours
SaturdayConfirm with facilityIn-personCall jail to confirm hours
SundayConfirm with facilityIn-personCall jail to confirm hours

Visitation Requirements

RequirementDetails
IDValid government-issued photo ID required for all visitors.
Dress CodeModest attire required; no revealing or offensive clothing allowed.
Prohibited ItemsWeapons, electronics, bags, and contraband strictly prohibited.
Visitor Approval ProcessMust be on inmate’s approved visitor list prior to entry.
Children PolicyMinors must be accompanied by a parent or legal guardian.
Attorney / Clergy VisitsAllowed outside regular hours with prior facility arrangement.

How to Contact an Inmate at Petroleum County Jail

Inmates at Petroleum County Jail can be contacted by phone, physical mail, and digital messaging, with options for video calls as well. Please note all communications are monitored and are subject to facility rules.

Mailing Address Format:
[Inmate Full Name, Booking ID]
Petroleum County Jail
219 Main St, Winnett, MT

MethodHow It WorksSetupRules / Restrictions
Phone CallsInmates can make outgoing calls via [Provider].Friends/family set up an account with [Provider].Calls are monitored; no incoming calls accepted; time limits apply.
Physical MailLetters may be sent to the inmate's facility address.Address mail using format above.No contraband; avoid staples, stickers, or prohibited items.
Digital MessagingSend/receive messages using [Provider]'s platform.Register on [Provider]'s website/app.Messages are screened; inappropriate content is blocked.
Video CallsSchedule and participate in video calls with [Provider].Create account and book a session.Calls are monitored; advance scheduling and fees may apply.

Parole, Release & Reentry Resources in Petroleum County

The Montana Board of Pardons and Parole oversees parole decisions for state-sentenced offenders, providing guidance throughout the release process. Local reentry support in Petroleum County is available through state agencies and community-based programs designed to help returning citizens successfully reintegrate.

Program / ResourceDescriptionWho It ServesContact / Access
Montana Board of Pardons and ParoleManages parole eligibility, hearings, and release decisions for state inmates.State-sentenced offendershttps://bopp.mt.gov/
406-846-1404
Good Time / Sentence ReductionAllows eligible inmates to earn reductions in sentence length for good behavior and program participation.Eligible inmatesMDOC Records Office: 406-444-3930
Parole SupervisionMonitors and assists parolees during community reintegration; supervision provided by regional Probation & Parole Office.Parolees in Petroleum CountyProbation & Parole - Lewistown Office (nearest): 514 NE Main St, Lewistown, MT 59457
406-538-7465
Reentry HousingTransitional housing referrals and support offered through the Montana Department of Corrections & partnerships.Offenders reentering the communityhttps://cor.mt.gov/Reentry/Housing
Employment AssistanceJob readiness classes, Montana Job Service, and employer partnerships for returning citizens.Formerly incarcerated individualshttps://montanaworks.gov/
(Find local Job Service office)
Benefits RestorationAssistance with Medicaid, SNAP, and other benefits reinstatement for eligible returning citizens.Returning citizensMontana DPHHS: 888-706-1535
https://dphhs.mt.gov/
VINE Victim NotificationVictim Information & Notification Everyday offers automated notifications on offender custody status.Victims and concerned citizenshttps://www.vinelink.com/classic/#/home/site/27000
866-277-7477

Petroleum Incarceration Statistics

Petroleum County is among the least populated counties in Montana, with an overall low crime rate and limited criminal justice activity. The county does not have a dedicated jail; instead, inmates are typically held at a regional facility such as the Musselshell County Detention Center.

Crime Statistics

Crime CategoryReported IncidentsRate per 100,000% of TotalTrend
Violent Crime (total)1 (statewide)387.3 (statewide)15% (statewide)→ Stable
— Assault1 (statewide)295.1 (statewide)11% (statewide)→ Stable
— Robbery0 (statewide)12.7 (statewide)<1% (statewide)↓ Decreasing
— Homicide0 (statewide)3.7 (statewide)<1% (statewide)↓ Decreasing
Property Crime (total)2 (statewide)1,821.2 (statewide)70% (statewide)↓ Decreasing
— Theft / Larceny1 (statewide)1,126.8 (statewide)43% (statewide)↓ Decreasing
— Burglary0 (statewide)286.6 (statewide)11% (statewide)→ Stable
— Vehicle Theft0 (statewide)94.5 (statewide)4% (statewide)→ Stable
Drug Offenses0 (statewide)180.2 (statewide)7% (statewide)→ Stable
DUI / Traffic1 (statewide)245.0 (statewide)10% (statewide)→ Stable
Domestic Violence0 (statewide)133.4 (statewide)5% (statewide)→ Stable

Inmate Demographics

Demographic CategoryBreakdownNotes
Gender85% Male, 15% FemaleStatewide average used
Age Groups18-24: 18%, 25-34: 28%, 35-44: 27%, 45+: 27%Statewide average used
Race / EthnicityWhite: 80%, Native American: 16%, Other: 4%Statewide average used
Top Offense TypesDrug, Property, ViolentStatewide average used
Avg. Sentence Length2.5 yearsStatewide average used
Recidivism Rate33%Statewide average used

How Many Inmates Are Currently in Petroleum County?

As of the latest estimate, there are approximately 7 individuals held in local custody within Petroleum County. Sentenced offenders requiring incarceration beyond local capacity or for longer terms are generally transferred to a state correctional facility.

Facility TypePopulation% of TotalAvg. Daily CostCapacity Utilization
County Jail (Pre-Trial)457%$7565%
Sentenced Offenders (local, short-term)229%$7535%
Transferred to State Facility114%N/AN/A
Federal Holds00%N/AN/A
Juvenile / Youth00%N/AN/A
Total7100%

Petroleum County Facility Directory

Petroleum County operates no standalone correctional facilities; local inmates are typically held at the primary regional state facility. The table below details this facility.

Facility NameTypeLocationCapacityPopulationSecurity Level
Montana State Prison (regional)Regional Facility400 Conley Lake Rd, Deer Lodge, MT1,600~1,500Medium/High

Petroleum County Prisons and Jails

1 Jails Found
Petroleum County Jail
302 East Main, Winnett, MT, 59087
406-429-6551
406-429-6328