Petroleum County Jail

Search for an Inmate in Petroleum County

Petroleum County Jail Information

The Petroleum County Jail is CLOSED. Offenders in Petroleum County are housed in Fergus County.

Offenders arrested for misdemeanors and felonies in this county are brought to Fergus County for booking and processing, and if their crime requires it, are incarcerated until they are either bonded out, are released from custody on their own recognizance, or are ordered to remain in custody until the disposition of their trial.

Phone: 406-429-6551

Physical Address:
201 E. Main
Winnett, MT 59087

Mailing Address (personal mail):
Inmate's first and last name
Fergus County Detention Center
21 8th Ave S,
Lewistown, MT 59457

Other Jails and Prisons

How Do You Find Someone in the Petroleum County Jail?

To search for an inmate in the Petroleum County Jail, review their criminal charges, the amount of their bond, when they can get visits, or even view their mugshot, go to the Official Jail Inmate Roster, or call the jail at 406-429-6551 for the information you are looking for.

Petroleum County Jail Inmate Search

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about finding an inmate in the Petroleum County Jail, how the jail rosters work and what happens after an offender is arrested and booked. If you still have questions after reviewing these FAQs, call 406-429-6551 for further assistance.

The Petroleum County Jail maintains an average of offenders in custody on any given day. The Petroleum County Jail has a monthly turnover of 40% of their inmate population, another 30% turnover every 90 days, another 20% every six months, and approximately 10% stay incarcerated between six and twelve months. Every year Petroleum County law enforcement agencies arrest and detain approximately 800 offenders.

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About the Petroleum County Jail

The Petroleum County Jail is CLOSED. Offenders in Petroleum County are housed in Fergus County.

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Recent Bookings & Arrests

How is booking conducted at Petroleum County Jail?

After an arrest, individuals are transported to Petroleum County Jail for the booking process. This procedure ensures the person’s identity, assesses charges, and determines if they will be released, eligible for bail, or detained until court.

Remaining silent during this process is vital. Anything said could be used as evidence, so it’s wise to wait for an attorney before speaking about the arrest.

Here’s a breakdown of the booking steps at Petroleum County Jail:

  • Verifying identification information.
  • Capturing mugshots for record-keeping.
  • Health assessments and questions about criminal history.
  • Possible DNA collection.
  • Physical search for contraband or weapons.
  • Securing personal belongings.
  • Granting a free phone call.

The booking process varies in duration, taking anywhere from an hour to 48 hours. For questions about an arrestee’s bond, call the facility at 406-429-6551.

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Directions / Map to the Petroleum County Jail
Inmate Bail and Bonding

How to post bail for someone arrested in Petroleum County

When an individual is arrested and booked at Petroleum County Jail in Winnett, the outcomes include:

1. Release without bail, under the condition they appear for their court date.
2. Remain in custody until the court appearance.
3. Post a bail or bond for release. Contact 406-429-6551 for specific bail amounts.

Bail payments can be made in different ways.

  • Cash, credit, or money order are accepted forms of payment.
  • You can work with a licensed bail bondsman in Petroleum County.
  • County real estate property can be used as collateral.

For further information on posting bail in Petroleum County, Montana, visit the Petroleum County Jail Bail Information Page.

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Inmate Visitation

How Do You Visit an Inmate in the Petroleum County Jail? What is the Schedule?

Petroleum County Jail ON-SITE VISITATION SCHEDULE

201 E. Main
Winnett, MT 59087
406-429-6551

  • Visits are 30 minutes.
  • You must be on the inmate's visitor list.
  • The actual visitation times may depend on the inmate and their housing location. Call 406-429-6551 and get your inmate's times and make an appointment to visit.
  • Inmates are allowed one visit per week.
  • A maximum of 2 guests are allowed per inmate.
  • Visitors must have a government issued photo ID.
  • Dress professionally with non-revealing clothing.

ON SITE VISITATION SCHEDULE - ALWAYS CALL 406-429-6551 TO CONFIRM VISITATION SCHEDULE!

DAY TIMES
SUNDAY 9:00AM - 11:00AM
2:00PM - 4:00PM
MONDAY 9:00AM - 11:00AM
2:00PM - 4:00PM
6:00PM - 8:00PM
TUESDAY 9:00AM - 11:00AM
2:00PM - 4:00PM
6:00PM - 8:00PM
WEDNESDAY 9:00AM - 11:00AM
2:00PM - 4:00PM
6:00PM - 8:00PM
THURSDAY 9:00AM - 11:00AM
2:00PM - 4:00PM
6:00PM - 8:00PM
FRIDAY 9:00AM - 11:00AM
2:00PM - 4:00PM
6:00PM - 8:00PM
SATURDAY 9:00AM - 11:00AM
2:00PM - 4:00PM

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Petroleum County Jail’s Inmate Visitation Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 406-429-6551 for further assistance.

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Remote Video Visitation

Can I Use My Computer or Phone to Have a Remote Video Visit with an Inmate in the Petroleum County Jail?

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Petroleum County Jail’s Video Remote Visitation Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 406-429-6551 for further assistance.

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Inmate Money Accounts

How Do You Deposit Money for an Inmate in the Petroleum County Jail?

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Petroleum County Jail’s Inmate Money and Trust Fund Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 406-429-6551 for further assistance.

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Inmate Phone Contact

How Do I Receive Phone Calls from an Inmate in the Petroleum County Jail?

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Petroleum County Jail’s Inmate Phone Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 406-429-6551 for further assistance.

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Mailing an Inmate

How do I Mail an Inmate in the Petroleum County Jail, and what can I send them?

Petroleum County Jail Inmate Mail Guidelines

Postcards
The Petroleum County Jail allows inmates to receive pre-metered postcards like the type purchased from the post office. They may also allow certain photo postcards as long as they have not been tampered with or contain images that may be considered to be obscene or violent in nature. It is best to only use blue or black ink. Always include your name and return address.

Envelopes
The Petroleum County Jail also allows envelopes to be mailed to inmates. It is best to only use blue or black ink.

Postcards and envelopes MUST HAVE the sender's full name and return address on the envelope. 

Postcards and envelopes MUST be mailed to the following address:
201 E. Main
Winnett, MT 59087



Legal Mail

Send all Legal Mail to this Address:
201 E. Main
Winnett, MT 59087



Newspapers
Newspapers may also be mailed to an inmate as long as they are shipped directly from the publisher.

Magazines
News, special interest or sports magazines may also be mailed to an inmate as long as they are shipped directly from the publisher. Any magazines that contain profanity, weapons, pornography or other content that is adult in nature will be confiscated by the jail staff and will NOT be delivered to the inmate.

Books
The Petroleum County Jail allows books to be mailed directly to the jail from a reputable source such as AmazonBarnes & Noble or Books-A-Million. You can order them directly from your computer and have them shipped to the inmate at the address noted.
Books must NOT contain images or content that are considered excessively violent, pornographic or obscene. Any book that does not meet the Petroleum County Jail standards will be disposed of. 
Hard cover books will not be accepted by the jail due to their potential to be used as a weapon.


All newspapers, magazines and books are to be shipped to:
201 E. Main
Winnett, MT 59087

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Petroleum County Jail’s Inmate Mail Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 406-429-6551 for further assistance.

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Inmate Commissary

Can I purchase Commissary Online for an Inmate in the Petroleum County Jail, and what can I purchase?

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Petroleum County Jail’s Commissary Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 406-429-6551 for further assistance.

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Texting and Emailing an Inmate

How Can I Communicate with an Inmate in the Petroleum County Jail using an Online Messaging Service?

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Petroleum County Jail’s Text and Email Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 406-429-6551 for further assistance.

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Inmate Tablets

Do Inmates in the Petroleum County Jail have Access to Tablets or Computers?

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Petroleum County Jail’s Tablet Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 406-429-6551 for further assistance.

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Other Jails in Petroleum County

What are the other City and County Jails in Petroleum County?

Petroleum County County Jails
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Other Jails Nearby

What are the other Jails in the Neighboring Counties surrounding Petroleum County?

Petroleum Fergus Phillips Musselshell Rosebud Garfield
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Search for an Inmate in Petroleum County

This facility, known as "Petroleum County Jail" is also known as Petroleum County Jail & Sheriff, *INMATES ARE HOUSED IN FERGUS COUNTY JAIL, Petroleum County Jail & Sheriff , Petroleum County Jail & Sheriff , Montana, Petroleum.