---
type: "Bill"
title: "Limits to Fox Hills-Hell Creek aquifer withdrawals"
description: "Limits to Fox Hills-Hell Creek aquifer withdrawals"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "HB 935"
citation: "Montana HB 935 (2025)"
classification: ["bill"]
subjects: ["Appropriations", "Revenue", "State", "Water"]
status: "enacted"
primary_sponsors: ["Morgan Thiel"]
version_count: 68
action_count: 49
vote_count: 10
first_action: "2024-10-09T18:38:05+00:00"
last_action: "2025-05-19T14:08:50+00:00"
source: "openstates"
source_identifier: "ocd-bill/05bb2aee-f6d5-45b9-8dfe-04f29521de81"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC0557?open_tab=sum"
source_hash: "61813e4aa752769ad84f31bdbf3ed61ee377b6173ae49b4b7bd610e2373caf7c"
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 935 (2025) — Limits to Fox Hills-Hell Creek aquifer withdrawals

## Version chain

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

1. **HB0935.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301593)
2. **HB0935.001.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301601)
3. **HB0935.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304670)
4. **HB0935.002.001_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=304671)
5. **HB0935.002.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309974)
6. **HB0935.002.002_Amendments-in-Context_final-not condensed(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310105)
7. **HB0935.002.002_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309975)
8. **HB0935.002.003_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309481)
9. **HB0935.002.003_Amendments-in-Context_final-not condensed(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310108)
10. **HB0935.002.003_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309976)
11. **HB0935.003.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312529)
12. **HB0935.003.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312528)
13. **HB0935.003.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312547)
14. **HB0935.003.002_Amendments-in-Context_final-not condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=312548)
15. **HB0935_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301234)
16. **HB0935_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301398)
17. **HB0935_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303629)
18. **HB0935_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303630)
19. **HB0935_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303631)
20. **HB0935_1(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303632)
21. **HB0935_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=301220)
22. **HB0935_2(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303634)
23. **HB0935_2(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=310071)
24. **HB0935_2(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311975)
25. **HB0935_2(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311976)
26. **HB0935_2(13).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311977)
27. **HB0935_2(14).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311978)
28. **HB0935_2(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303636)
29. **HB0935_2(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303637)
30. **HB0935_2(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303645)
31. **HB0935_2(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303647)
32. **HB0935_2(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303651)
33. **HB0935_2(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303654)
34. **HB0935_2(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303716)
35. **HB0935_2(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=305328)
36. **HB0935_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=303633)
37. **HB0935_3(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315090)
38. **HB0935_3(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315091)
39. **HB0935_3(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315092)
40. **HB0935_3(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315093)
41. **HB0935_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311982)
42. **HB0935_4(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315095)
43. **HB0935_4(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319457)
44. **HB0935_4(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319458)
45. **HB0935_4(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319462)
46. **HB0935_4(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315096)
47. **HB0935_4(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315097)
48. **HB0935_4(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315105)
49. **HB0935_4(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315114)
50. **HB0935_4(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315115)
51. **HB0935_4(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=317866)
52. **HB0935_4(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=318047)
53. **HB0935_4(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319456)
54. **HB0935_4.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=315094)
55. **HB0935_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319465)
56. **HB0935_X(10).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325342)
57. **HB0935_X(11).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325343)
58. **HB0935_X(12).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325871)
59. **HB0935_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319466)
60. **HB0935_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319927)
61. **HB0935_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319928)
62. **HB0935_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319931)
63. **HB0935_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319932)
64. **HB0935_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=321076)
65. **HB0935_X(8).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324483)
66. **HB0935_X(9).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325341)
67. **HB0935_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=319463)
68. **LC0557.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=300883)

## Votes

- be_concurred_in_as_amended — **11–0** (pass) · upper
- Do Concur — **100–0** (pass) · lower
- Do Concur — **100–0** (pass) · lower
- Do Pass — **100–0** (pass) · lower
- Do Concur As Amended — **46–4** (pass) · upper
- Do Concur — **41–8** (pass) · upper
- do_pass_as_amended — **14–0** (pass) · lower
- AMD-HB0935.003.002 Flowers D/PASS — **38–11** (pass) · upper
- Do Pass — **98–0** (pass) · lower
- Cloture-Duram — **91–1** (pass) · lower

## Sponsors

- Morgan Thiel — primary (person)

## Timeline

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

- **2024-10-09T18:38:05+00:00** (LC) Drafter Assigned
- **2024-10-09T18:38:05+00:00** (LC) Draft On Hold
- **2025-02-24T23:05:34+00:00** (LC) Draft Taken Off Hold
- **2025-03-26T01:42:48+00:00** (LC) Draft in Legal Review
- **2025-03-26T12:41:01+00:00** (LC) Draft in Edit
- **2025-03-29T18:19:58+00:00** (LC) Draft in Input/Proofing
- **2025-03-30T17:02:40+00:00** (LC) Draft in Final Drafter Review
- **2025-03-30T17:33:38+00:00** (LC) Draft in Assembly
- **2025-03-31T15:05:35+00:00** (LC) Draft Ready for Delivery
- **2025-03-31T15:26:20+00:00** (LC) Draft Delivered to Requester
- **2025-03-31T15:49:27+00:00** (H) Introduced
- **2025-03-31T15:51:04+00:00** (H) Fiscal Note Requested
- **2025-03-31T16:46:36+00:00** (H) Referred to Committee - (H) Natural Resources `referral-committee`
- **2025-03-31T17:44:42+00:00** (H) Hearing - (H) Natural Resources
- **2025-03-31T19:11:39+00:00** (H) First Reading `reading-1`
- **2025-04-01T01:32:38+00:00** (H) Committee Executive Action--Bill Passed as Amended - (H) Natural Resources `committee-passage`
- **2025-04-02T19:09:57+00:00** (H) Fiscal Note Received `receipt`
- **2025-04-02T19:41:12+00:00** (H) Fiscal Note Unsigned
- **2025-04-02T23:58:00+00:00** (H) Committee Report--Bill Passed as Amended - (H) Natural Resources `committee-passage`
- **2025-04-03T13:25:00+00:00** (H) Fiscal Note Printed
- **2025-04-03T17:03:05+00:00** (H) Revised Fiscal Note Requested
- **2025-04-04T17:55:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2025-04-05T14:59:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2025-04-05T15:45:58+00:00** (H) Transmitted to Senate
- **2025-04-07T19:13:37+00:00** (S) First Reading `reading-1`
- **2025-04-07T19:36:00+00:00** (S) Referred to Committee - (S) Natural Resources `referral-committee`
- **2025-04-08T13:38:37+00:00** (H) Revised Fiscal Note Received `receipt`
- **2025-04-08T15:37:13+00:00** (S) Hearing - (S) Natural Resources
- **2025-04-08T22:24:07+00:00** (H) Fiscal Note Unsigned
- **2025-04-08T22:24:41+00:00** (H) Fiscal Note Printed
- **2025-04-14T22:01:02+00:00** (S) Committee Executive Action--Bill Concurred as Amended - (S) Natural Resources
- **2025-04-16T19:24:00+00:00** (S) Committee Report--Bill Concurred as Amended - (S) Natural Resources
- **2025-04-23T15:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-04-23T17:35:00+00:00** (S) 2nd Reading Motion to Amend Carried `reading-2`
- **2025-04-23T17:40:00+00:00** (S) 2nd Reading Concurred as Amended `reading-2, reading-2`
- **2025-04-25T15:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-04-25T17:27:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2025-04-25T18:59:44+00:00** (S) Returned to House with Amendments
- **2025-04-29T16:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-04-29T16:58:00+00:00** (H) 2nd Reading Senate Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
- **2025-04-30T15:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-04-30T16:59:00+00:00** (H) 3rd Reading Passed as Amended by Senate `passage, passage, reading-3, reading-3`
- **2025-04-30T19:25:19+00:00** (H) Sent to Enrolling
- **2025-05-01T19:50:35+00:00** (H) Returned from Enrolling
- **2025-05-05T19:00:25+00:00** (H) Signed by Speaker `passage`
- **2025-05-06T20:00:00+00:00** (S) Signed by President `passage`
- **2025-05-07T15:03:52+00:00** (H) Transmitted to Governor `executive-receipt`
- **2025-05-13T19:43:00+00:00** (H) Signed by Governor `executive-signature`
- **2025-05-19T14:08:50+00:00** Chapter Number Assigned `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/05bb2aee-f6d5-45b9-8dfe-04f29521de81`. Confidence: reported (aggregated from official Montana legislature records).