republic-os/legislation/us/states/co/2023a/sb-23-186.md

---
type: "Bill"
title: "Oil And Gas Commission Study Methane Seepage Raton Basin"
description: "The act requires the Colorado oil and gas conservation commission (commission) and the water quality control division (division) in the department of public health and environment, in consultation with local governments, to perform a study that:"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2023A"
identifier: "SB 23-186"
citation: "Colorado SB 23-186 (2023A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Faith Winter", "Jenny Willford", "Rod Pelton", "Ty Winter"]
version_count: 12
action_count: 19
vote_count: 4
first_action: "2023-03-09T07:00:00+00:00"
last_action: "2023-06-02T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/8fb80b35-9340-463f-acd5-a9e00bc13f35"
source_url: "https://leg.colorado.gov/bills/sb23-186"
source_hash: "eb7aec06279c68b5cef879e2efb0dfc0e2693ca2a151e3db8984f9978d59ffd1"
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-co"]
---

# Colorado SB 23-186 (2023A) — Oil And Gas Commission Study Methane Seepage Raton Basin

The act requires the Colorado oil and gas conservation commission (commission) and the water quality control division (division) in the department of public health and environment, in consultation with local governments, to perform a study that:

## Version chain

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

1. **Committee Amendment** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2023a_sb186_h_app_003.pdf)
2. **Engrossed (04/06/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_186_eng.pdf)
3. **Final Act (05/17/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_186_enr.pdf)
4. **Introduced (03/09/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_186_01.pdf)
5. **PA1 (03/23/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_186_s_tra_01.pdf)
6. **PA2 (03/31/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_186_s_tra_app_01.pdf)
7. **PA3 (04/21/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_186_h_ene_01.pdf)
8. **PA4 (04/28/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_186_h_ene_app_01.pdf)
9. **Reengrossed (04/10/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_186_ren.pdf)
10. **Rerevised (05/06/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_186_rer.pdf)
11. **Revised (05/04/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_186_rev.pdf)
12. **Signed Act (06/02/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2023a_186_signed.pdf)

## Votes

- BILL — **65–0** (pass) · lower
- REPASS — **35–0** (pass) · upper
- BILL — **35–0** (pass) · upper
- CONCUR — **35–0** (pass) · upper

## Sponsors

- Faith Winter — primary (person)
- Jenny Willford — primary (person)
- Rod Pelton — primary (person)
- Ty Winter — primary (person)

## Timeline

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

- **2023-06-02T06:00:00+00:00** Governor Signed `executive-signature`
- **2023-05-17T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2023-05-17T06:00:00+00:00** Signed by the President of the Senate
- **2023-05-16T06:00:00+00:00** Signed by the Speaker of the House
- **2023-05-08T06:00:00+00:00** Senate Considered House Amendments - Result was to Concur - Repass
- **2023-05-06T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2023-05-05T06:00:00+00:00** House Third Reading Laid Over Daily - No Amendments
- **2023-05-04T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee
- **2023-05-02T06:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2023-04-28T06:00:00+00:00** House Committee on Appropriations Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2023-04-20T06:00:00+00:00** House Committee on Energy & Environment Refer Amended to Appropriations `referral-committee`
- **2023-04-10T06:00:00+00:00** Introduced In House - Assigned to Energy & Environment `introduction`
- **2023-04-10T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2023-04-06T06:00:00+00:00** Senate Second Reading Passed with Amendments - Committee, Floor `reading-2`
- **2023-04-05T06:00:00+00:00** Senate Second Reading Laid Over Daily - No Amendments
- **2023-04-04T06:00:00+00:00** Senate Second Reading Laid Over Daily - No Amendments
- **2023-03-31T06:00:00+00:00** Senate Committee on Appropriations Refer Amended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2023-03-22T06:00:00+00:00** Senate Committee on Transportation & Energy Refer Amended to Appropriations `referral-committee`
- **2023-03-09T07:00:00+00:00** Introduced In Senate - Assigned to Transportation & Energy `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/8fb80b35-9340-463f-acd5-a9e00bc13f35`. Confidence: reported (aggregated from official Colorado legislature records).