---
type: "Bill"
title: "Revise tax rates for stripper oil production"
description: "Revise tax rates for stripper oil production"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "HB 485"
citation: "Montana HB 485 (2023)"
classification: ["bill"]
subjects: ["Oil and Gas (see also: Mining and Minerals; Taxation--Oil and Gas)", "Revenue", "Local", "Revenue", "State", "Taxation (Generally)", "Taxation--Oil and Gas"]
status: "enacted"
primary_sponsors: ["Joshua Kassmier"]
version_count: 8
action_count: 62
vote_count: 7
first_action: "2022-10-13T14:58:24+00:00"
last_action: "2023-05-19T19:50:27+00:00"
source: "openstates"
source_identifier: "ocd-bill/91550dca-2590-4e99-bd48-d6b35d35b831"
source_url: "https://bills.legmt.gov/#/bill/20231/LC0715"
source_hash: "e72393c8c4f795dd1c134daa78be0bde3f40ebfe4c6c255d244df59eb5384dd2"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-mt"]
---

# Montana HB 485 (2023) — Revise tax rates for stripper oil production

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **HB0485.001.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=10231)
2. **HB0485.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=10227)
3. **HB0485.001.002_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=10230)
4. **HB0485.001.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=10229)
5. **HB0485001SCH18802.hlc.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=10228)
6. **HB0485_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=10236)
7. **HB0485_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=10234)
8. **HB0485_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=10235)

## Votes

- (S) 2nd Reading Concurred — **34–16** (pass) · upper
- (H) Committee Executive Action--Bill Passed as Amended — **13–8** (pass) · lower
- (S) 3rd Reading Concurred — **31–16** (pass) · upper
- (H) 2nd Reading Passed — **70–29** (pass) · lower
- (H) 3rd Reading Passed — **69–29** (pass) · lower
- (S) Committee Executive Action--Bill Concurred — **8–4** (pass) · upper
- (H) Committee Executive Action--Bill Passed — **16–7** (pass) · lower

## Sponsors

- Joshua Kassmier — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2023-05-19T19:50:27+00:00** Chapter Number Assigned `became-law`
- **2023-05-18T22:57:43+00:00** (H) Signed by Governor `executive-signature`
- **2023-05-08T16:20:00+00:00** (H) Transmitted to Governor `executive-receipt`
- **2023-05-04T23:00:00+00:00** (S) Signed by President `passage`
- **2023-05-04T20:00:00+00:00** (H) Signed by Speaker `passage`
- **2023-04-28T19:06:45+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-04-28T19:06:44+00:00** (H) Returned from Enrolling
- **2023-04-21T22:18:23+00:00** (H) Sent to Enrolling
- **2023-04-21T22:09:13+00:00** (S) Returned to House
- **2023-04-20T20:30:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2023-04-20T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-04-19T19:30:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2023-04-19T19:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-04-17T23:31:00+00:00** (S) Committee Report--Bill Concurred
- **2023-04-17T14:30:00+00:00** (S) Committee Executive Action--Bill Concurred
- **2023-04-12T14:30:00+00:00** (S) Hearing
- **2023-04-05T22:59:46+00:00** (S) Referred to Committee `referral-committee`
- **2023-04-05T20:00:00+00:00** (S) First Reading `reading-1`
- **2023-04-04T20:46:00+00:00** (H) Transmitted to Senate
- **2023-04-04T20:04:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2023-04-04T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-04-03T21:48:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2023-04-03T18:30:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-03-31T20:17:00+00:00** (H) Committee Report--Bill Passed `committee-passage`
- **2023-03-30T22:57:00+00:00** (H) Committee Executive Action--Bill Passed `committee-passage`
- **2023-03-30T21:00:00+00:00** (H) Hearing
- **2023-03-30T20:31:00+00:00** (H) Rereferred to Committee `referral-committee, referral-committee`
- **2023-03-30T14:28:55+00:00** (C) Printed - New Version Available
- **2023-03-29T19:37:00+00:00** (H) Committee Report--Bill Passed as Amended `committee-passage`
- **2023-03-28T14:00:00+00:00** (H) Committee Executive Action--Bill Passed as Amended `committee-passage`
- **2023-03-24T20:05:12+00:00** (H) Revised Fiscal Note Printed
- **2023-03-24T15:16:56+00:00** (H) Revised Fiscal Note Signed
- **2023-03-23T21:35:25+00:00** (H) Revised Fiscal Note Received `receipt`
- **2023-03-21T22:48:30+00:00** (H) Revised Fiscal Note Requested
- **2023-03-21T14:00:00+00:00** (H) Hearing
- **2023-03-20T20:10:00+00:00** (H) Sponsor List Modified
- **2023-03-19T23:09:45+00:00** (C) Amendments Available
- **2023-02-21T01:10:59+00:00** (H) Fiscal Note Printed
- **2023-02-20T23:06:37+00:00** (H) Fiscal Note Signed
- **2023-02-17T21:54:34+00:00** (H) Fiscal Note Received `receipt`
- **2023-02-14T21:43:45+00:00** (H) Hearing Canceled
- **2023-02-13T20:17:36+00:00** (H) First Reading `reading-1`
- **2023-02-13T17:44:10+00:00** (H) Referred to Committee `referral-committee`
- **2023-02-10T16:37:45+00:00** (C) Introduced Bill Text Available Electronically
- **2023-02-10T16:19:04+00:00** (H) Fiscal Note Requested
- **2023-02-10T02:24:39+00:00** (H) Introduced
- **2023-02-10T02:24:38+00:00** (C) Fiscal Note Probable
- **2023-02-09T18:56:43+00:00** (C) Draft Delivered to Requester
- **2023-02-07T21:25:01+00:00** (C) Draft Ready for Delivery
- **2023-02-06T23:24:07+00:00** (C) Executive Director Final Review
- **2023-02-06T23:23:58+00:00** (C) Draft Ready for Delivery
- **2023-02-06T21:17:15+00:00** (C) Draft in Assembly
- **2023-02-06T21:08:13+00:00** (C) Executive Director Review
- **2023-02-06T20:58:37+00:00** (C) Bill Draft Text Available Electronically
- **2023-02-06T20:58:36+00:00** (C) Draft in Final Drafter Review
- **2023-02-06T18:37:49+00:00** (C) Draft in Input/Proofing
- **2023-02-04T21:13:11+00:00** (C) Draft to Drafter - Edit Review
- **2023-02-02T15:27:21+00:00** (C) Draft in Edit
- **2023-02-01T15:25:05+00:00** (C) Draft in Legal Review
- **2023-01-30T20:50:28+00:00** (C) Draft to Requester for Review
- **2023-01-28T19:49:16+00:00** (C) Draft On Hold
- **2022-10-13T14:58:24+00:00** (C) Draft Request Received `receipt`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/91550dca-2590-4e99-bd48-d6b35d35b831`. Confidence: reported (aggregated from official Montana legislature records).