---
type: "Bill"
title: "Oklahoma Brine Development Act; modifications; modifying definitions; defining terms; Corporation Commission; emergency."
description: "Oklahoma Brine Development Act; modifications; modifying definitions; defining terms; Corporation Commission; emergency."
jurisdiction: "us/states/ok"
legislature: "Oklahoma Legislature"
session: "2026"
identifier: "HB 4338"
citation: "Oklahoma HB 4338 (2026)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Green", "Moore"]
version_count: 11
action_count: 32
vote_count: 6
first_action: "2026-02-02"
last_action: "2026-05-12"
source: "openstates"
source_identifier: "ocd-bill/8f0b8a8a-834c-41a3-a01e-e283a62bf071"
source_url: "http://www.oklegislature.gov/BillInfo.aspx?Bill=HB4338&session=2600"
source_hash: "dead0d3f9f01f9a84302fa0b3c0527b9fbb2bbc3877351aff728636caafd2e77"
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-ok"]
---

# Oklahoma HB 4338 (2026) — Oklahoma Brine Development Act; modifications; modifying definitions; defining terms; Corporation Commission; emergency.

## Version chain

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

1. **Introduced** (filed) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 INT/hB/HB4338 INT.PDF)
2. **1 Floor Amendment by MOORE** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLOOR AMENDMENTS/House/HB4338 FA1 MOOREAN-JBH.PDF)
3. **Amended And Engrossed** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 AMENDMENTS/Amendment and Engr/HB4338 SAHB AND ENGR.PDF)
4. **Engrossed** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 ENGR/hB/HB4338 ENGR.PDF)
5. **Enrolled (final version)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 ENR/hB/HB4338 ENR.PDF)
6. **Floor (House)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLR/HFLR/HB4338 HFLR.PDF)
7. **Floor (Senate)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLR/SFLR/HB4338 SFLR.PDF)
8. **HB4338 (4-29-26) (GREEN) FS FA1.PDF** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLOOR AMENDMENTS/Senate/HB4338 (4-29-26) (GREEN) FS FA1.PDF)
9. **House Committee Substitute** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 COMMITTEE SUBS/HCS/HB4338 CS.PDF)
10. **Policy Committee Recommendation** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 COMMITTEE SUBS/HCS/HB4338 POLREC.PDF)
11. **Proposed Policy Committee Substitute 1** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 COMMITTEE AMENDMENTS/House/HB4338 POLPCS1 ANTHONY MOORE-JBH.PDF)

## Votes

- Energy And Natural Resources Oversight Committee: Do Pass As Amended By Cs — **14–0** (pass) · lower
- Do Pass — **8–1** (pass) · upper
- Energy Committee: Do Pass As Amended By Cs — **11–0** (pass) · lower
- Third Reading — **48–0** (pass) · upper
- Fourth Reading — **85–0** (pass) · lower
- Third Reading — **93–0** (pass) · lower

## Sponsors

- Green — primary (person)
- Moore — primary (person)

## Timeline

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

- **2026-02-02** First Reading `introduction, reading-1`
- **2026-02-02** Authored by Representative Moore
- **2026-02-03** Second Reading referred to Rules `reading-2, referral-committee`
- **2026-02-04** Withdrawn from Rules Committee
- **2026-02-04** Referred to Energy and Natural Resources Oversight `referral-committee`
- **2026-02-04** Referred to Energy `referral-committee`
- **2026-02-16** Policy recommendation to the Energy and Natural Resources Oversight committee; Do Pass, amended by committee substitute Energy `committee-passage`
- **2026-02-16** Coauthored by Representative(s) Newton, Bashore
- **2026-02-16** Authored by Senator Green (principal Senate author)
- **2026-02-25** CR; Do Pass, amended by committee substitute Energy and Natural Resources Oversight Committee `committee-passage`
- **2026-03-25** General Order
- **2026-03-25** Amended by floor substitute
- **2026-03-25** Emergency added
- **2026-03-25** Third Reading, Measure and Emergency passed: Ayes: 93 Nays: 0 `passage, reading-3`
- **2026-03-25** Referred for engrossment
- **2026-03-30** Engrossed, signed, to Senate `passage`
- **2026-03-30** First Reading `introduction, reading-1`
- **2026-04-01** Second Reading referred to Energy `reading-2, referral-committee`
- **2026-04-16** Reported Do Pass Energy committee; CR filed `committee-passage`
- **2026-04-21** Placed on General Order
- **2026-05-04** General Order, Amended by Floor Substitute
- **2026-05-04** Measure and Emergency passed: Ayes: 48 Nays: 0 `passage`
- **2026-05-04** Referred for engrossment
- **2026-05-05** Engrossed to House `passage`
- **2026-05-05** SA's received
- **2026-05-06** SA's read, adopted
- **2026-05-06** Fourth Reading, Measure and Emergency Passed: Ayes: 85 Nays: 0 `passage`
- **2026-05-06** Referred for enrollment
- **2026-05-06** Enrolled, signed, to Senate
- **2026-05-06** Enrolled measure signed, returned to House
- **2026-05-06** Sent to Governor `executive-receipt`
- **2026-05-12** Approved by Governor 05/12/2026 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/8f0b8a8a-834c-41a3-a01e-e283a62bf071`. Confidence: reported (aggregated from official Oklahoma legislature records).