# MPLX LP > Alpha governed public record. Unknown, unavailable, and unpublished values are never inferred as zero. ## Record | Field | Value | | --- | --- | | Representation | alpha-profile-markdown-v4 | | Protocol | Alpha Governance Facts Protocol 0.1 | | Schema | alpha.governance.entity.public.v1 | | Record version | public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce | | Governance record representation | alpha-governance-record-v2 | | Canonical entity | alpha:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066 | | Entity type | Company | | Canonical URL | https://registry.alpha.ac/companies/mplx-lp | | Publication | PUBLISHED | | Verification | source_reported | | Verification schema | alpha-verification-states-v1 | | Ownership | unclaimed | | Published claims | 20 | | Claims under review | 1 | | Evidence records | 14 | | Conflicts | 0 | | Conflicts in internal review | 0 | | Observed | 2026-11-02T04:45:19.370544+00:00 | | Last reviewed | 2026-11-02T04:45:19.370544+00:00 | ## Identity - Legal name: MPLX LP - Display name: MPLX LP ## Alpha Governance Record | Field | Value | | --- | --- | | Governance Record schema | alpha-governance-record-v2 | | Ontology | alpha-governance-ontology-v1 | | Record version | public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce | | As of | 2026-11-02T20:34:30.361906+00:00 | | Completeness | 0.318 | | Record Quality | 0.744 | | Directors | 0 | | Committees | 0 | | Governance events | 3 | | Entity class | public_company | ## Section coverage | Section | State | | --- | --- | | identity | PUBLISHED | | corporate_structure | NOT_REVIEWED | | board | NOT_REVIEWED | | committees | NOT_REVIEWED | | leadership | PUBLISHED | | ownership | NOT_REVIEWED | | financials | NOT_REVIEWED | | capital_structure | PUBLISHED | | compensation | NOT_REVIEWED | | governance | NOT_REVIEWED | | shareholder_governance | NOT_REVIEWED | | audit | NOT_REVIEWED | | legal | NOT_REVIEWED | | risk | NOT_REVIEWED | | cyber | NOT_REVIEWED | | ai_governance | NOT_REVIEWED | | agent_governance | RESTRICTED | | markets_external | NOT_REVIEWED | | events | PUBLISHED | | relationships | PUBLISHED | | assessments | PUBLISHED | | evidence | PUBLISHED | ## Executive leadership - C. Kristopher Hagedorn: Executive Vice President and CFO [CFO]. Status: current. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:9 - Maryann T. Mannen: President and CEO [CEO]. Status: current. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:15 - Molly R. Benson: Chief Legal Officer and Corporate Secretary [GC]. Status: current. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:17 - Brian K. Partee: Senior Vice President of MPLX GP LLC. Status: unknown. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:8 - Carl Kristopher Hagedorn: Executive Vice President, Chief Financial Officer & Director of MPLX GP LLC [CFO]. Status: unknown. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:10 - David R. Heppner: Senior Vice President of MPLX GP LLC. Status: unknown. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:11 - Gregory Scott Floerke: Executive Vice President & Chief Operating Officer of MPLX GP LLC [COO]. Status: unknown. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:12 - Kelly S. Niese: Vice President of Treasury - MPLX GP LLC. Status: unknown. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:13 - Kristina Anna Kazarian: Vice President of Finance & Investor Relations - MPLX GP LLC. Status: unknown. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:14 - Michael A. Henschen: Senior Vice President of MPLX GP LLC. Status: unknown. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:16 - Rick D. Hessling: Senior Vice President of MPLX GP LLC. Status: unknown. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:18 - Shawn Lyon: Senior Vice President of Logistics & Storage - MPLX GP LLC. Status: unknown. claim_id=alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:19 ## Governance events - CFO_CHANGED: C. Kristopher Hagedorn executive of MPLX LP, effective 2026-02-26. Effective: 2026-02-26. Detected: 2026-11-02T04:45:19.370544+00:00. event_id=alpha:event:transition:1gl6vpu1exjd3k - CEO_CHANGED: Maryann T. Mannen executive of MPLX LP, effective 2026-02-26. Effective: 2026-02-26. Detected: 2026-11-02T04:45:19.370544+00:00. event_id=alpha:event:transition:ymv4yb6kh439 - GC_CHANGED: Molly R. Benson executive of MPLX LP, effective 2026-02-26. Effective: 2026-02-26. Detected: 2026-11-02T04:45:19.370544+00:00. event_id=alpha:event:transition:tdfs7nfr00xj ## Scoped resources - `alpha://company/mplx-lp` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record - `alpha://company/mplx-lp/identity` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=identity - `alpha://company/mplx-lp/corporate-structure` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=corporate-structure - `alpha://company/mplx-lp/board` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=board - `alpha://company/mplx-lp/committees` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=committees - `alpha://company/mplx-lp/leadership` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=leadership - `alpha://company/mplx-lp/ownership` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=ownership - `alpha://company/mplx-lp/financials` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=financials - `alpha://company/mplx-lp/capital-structure` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=capital-structure - `alpha://company/mplx-lp/compensation` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=compensation - `alpha://company/mplx-lp/governance` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=governance - `alpha://company/mplx-lp/shareholder-governance` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=shareholder-governance - `alpha://company/mplx-lp/audit` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=audit - `alpha://company/mplx-lp/legal` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=legal - `alpha://company/mplx-lp/risk` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=risk - `alpha://company/mplx-lp/cyber` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=cyber - `alpha://company/mplx-lp/ai-governance` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=ai-governance - `alpha://company/mplx-lp/agents` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=agents - `alpha://company/mplx-lp/ecosystem` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=ecosystem - `alpha://company/mplx-lp/events` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=events - `alpha://company/mplx-lp/relationships` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=relationships - `alpha://company/mplx-lp/assessments` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=assessments - `alpha://company/mplx-lp/evidence` (contract): https://registry.alpha.ac/api/public/companies/mplx-lp?format=record§ion=evidence ## Role modules - NOT_ASSERTED ## Attention - NO_RECORDS_FOUND ## Committee data - NO_RECORDS_FOUND ## Leadership - Brian K. Partee: Senior Vice President of MPLX GP LLC. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:8. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:7d75cb478fdc08b7c996492ca6e1edf726a276921d6156048fa999815a14a127. - C. Kristopher Hagedorn: Executive Vice President and CFO. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:9. Valid from: 2026-02-26. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:ed7b9bec8d2a39f3b860aa8d7a50238517600bf922f74a651827b76f493b8325. - Carl Kristopher Hagedorn: Executive Vice President, Chief Financial Officer & Director of MPLX GP LLC. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:10. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:f59266425a0a07ce725f3920dd05c7320338e36062d3a8533e03d6dc05834cff. - David R. Heppner: Senior Vice President of MPLX GP LLC. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:11. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:b616a5ed72961eaf5a77c9f6c4c5bbfccc4c13501ce68af64911fb5b684c539e. - Gregory Scott Floerke: Executive Vice President & Chief Operating Officer of MPLX GP LLC. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:12. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:a44caf59a5b6b0c675f57e5ec57797daae70bfb0e04fb8076c94a3b99306854b. - Kelly S. Niese: Vice President of Treasury - MPLX GP LLC. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:13. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:5008ae4452e0a63f0b027425899be8deb51cc07206657218f196541d4ec1c287. - Kristina Anna Kazarian: Vice President of Finance & Investor Relations - MPLX GP LLC. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:14. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:251db77871f6ca54974cd7d941472e1b6cd1f085af872b9c769b83887832812e. - Maryann T. Mannen: President and CEO. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:15. Valid from: 2026-02-26. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:aa9dfdab9366f5d855610b1a69672fa5976b6737b32e8d1ae0c6588ec4094c83. - Michael A. Henschen: Senior Vice President of MPLX GP LLC. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:16. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:699262d900d0f06cdc21adb74b1003aedfccc39b964458a5a00e8094dae6152d. - Molly R. Benson: Chief Legal Officer and Corporate Secretary. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:17. Valid from: 2026-02-26. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:86da6cfb67466afb89d0fee26950182fd6f2066fc0b637e6c27b745b1f7c008f. - Rick D. Hessling: Senior Vice President of MPLX GP LLC. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:18. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:9c0d229a101a7db981d160583ad1071908d4cf040c92a8f44fe29bad6e4f6c22. - Shawn Lyon: Senior Vice President of Logistics & Storage - MPLX GP LLC. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:leadership_role:19. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:64b3cb972cfa51bd378d8ae0ca4dec971357f1282fe55304cdf82b93e05d23d1. ## Roles - PUBLISHED ## Governance - NOT_ASSERTED ## Board committees - NOT_ASSERTED ## Financials - NOT_ASSERTED ## Workforce - NOT_ASSERTED ## Market and index context - PUBLISHED ## Legal Name - MPLX LP. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:legal_name:1. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:ddfb8ad5c52023a138cd3787300896b07f2b7a5be37de027b77e6d22bdac8187. ## Entity Status - Public listing published. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:entity_status:3. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:ddfb8ad5c52023a138cd3787300896b07f2b7a5be37de027b77e6d22bdac8187. ## Official Website - https://www.mplx.com. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:official_website:4. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:924c5d529620f68c0f75756dc2a00bb91061f9e00570ec560e849a80443bc558. ## Published Fact - US. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:published_fact:5. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:ddfb8ad5c52023a138cd3787300896b07f2b7a5be37de027b77e6d22bdac8187. - Energy. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:published_fact:6. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:ddfb8ad5c52023a138cd3787300896b07f2b7a5be37de027b77e6d22bdac8187. - https://www.mplx.com. Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:published_fact:7. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:924c5d529620f68c0f75756dc2a00bb91061f9e00570ec560e849a80443bc558. ## Security Listing - MPLX (NYSE). Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:security_listing:20. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:ddfb8ad5c52023a138cd3787300896b07f2b7a5be37de027b77e6d22bdac8187. - MPLXP (OTC). Claim: alpha:claim:company:7f44b249-a49d-4dc1-a0f5-61aa4d9d6066:security_listing:21. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:ddfb8ad5c52023a138cd3787300896b07f2b7a5be37de027b77e6d22bdac8187. ## Coverage states | Field | Value | | --- | --- | | Identity | PUBLISHED | | Business | PUBLISHED | | Leadership | PUBLISHED | | Board and committees | NOT_ASSERTED | | Governance | NOT_ASSERTED | | Financials | NOT_ASSERTED | | Workforce | NOT_ASSERTED | | Ownership | NOT_ASSERTED | | Ratings | NOT_PUBLISHED | | Market and index context | PUBLISHED | ## Public sources - alpha:projection-evidence:ddfb8ad5c52023a138cd3787300896b07f2b7a5be37de027b77e6d22bdac8187: [Alpha canonical company public projection](https://www.alpha.ac/api/public/companies/mplx-lp). - alpha:projection-evidence:924c5d529620f68c0f75756dc2a00bb91061f9e00570ec560e849a80443bc558: [MPLX LP Form 10-K (filed 2026-02-26)](https://www.sec.gov/Archives/edgar/data/1552000/000155200026000009/mplx-20251231.htm). - alpha:projection-evidence:document:7d75cb478fdc08b7c996492ca6e1edf726a276921d6156048fa999815a14a127: [MPLX LP key executives](https://financialmodelingprep.com/stable/key-executives?symbol=MPLX). - alpha:projection-evidence:document:ed7b9bec8d2a39f3b860aa8d7a50238517600bf922f74a651827b76f493b8325: [MPLXP 10-K executive officers](https://www.sec.gov/Archives/edgar/data/1552000/000155200026000009/mplx-20251231.htm). - alpha:projection-evidence:document:f59266425a0a07ce725f3920dd05c7320338e36062d3a8533e03d6dc05834cff: [MPLX LP key executives](https://financialmodelingprep.com/stable/key-executives?symbol=MPLX). - alpha:projection-evidence:document:b616a5ed72961eaf5a77c9f6c4c5bbfccc4c13501ce68af64911fb5b684c539e: [MPLX LP key executives](https://financialmodelingprep.com/stable/key-executives?symbol=MPLX). - alpha:projection-evidence:document:a44caf59a5b6b0c675f57e5ec57797daae70bfb0e04fb8076c94a3b99306854b: [MPLX LP key executives](https://financialmodelingprep.com/stable/key-executives?symbol=MPLX). - alpha:projection-evidence:document:5008ae4452e0a63f0b027425899be8deb51cc07206657218f196541d4ec1c287: [MPLX LP key executives](https://financialmodelingprep.com/stable/key-executives?symbol=MPLX). - alpha:projection-evidence:document:251db77871f6ca54974cd7d941472e1b6cd1f085af872b9c769b83887832812e: [MPLX LP key executives](https://financialmodelingprep.com/stable/key-executives?symbol=MPLX). - alpha:projection-evidence:document:aa9dfdab9366f5d855610b1a69672fa5976b6737b32e8d1ae0c6588ec4094c83: [MPLXP 10-K executive officers](https://www.sec.gov/Archives/edgar/data/1552000/000155200026000009/mplx-20251231.htm). - alpha:projection-evidence:document:699262d900d0f06cdc21adb74b1003aedfccc39b964458a5a00e8094dae6152d: [MPLX LP key executives](https://financialmodelingprep.com/stable/key-executives?symbol=MPLX). - alpha:projection-evidence:document:86da6cfb67466afb89d0fee26950182fd6f2066fc0b637e6c27b745b1f7c008f: [MPLXP 10-K executive officers](https://www.sec.gov/Archives/edgar/data/1552000/000155200026000009/mplx-20251231.htm). - alpha:projection-evidence:document:9c0d229a101a7db981d160583ad1071908d4cf040c92a8f44fe29bad6e4f6c22: [MPLX LP key executives](https://financialmodelingprep.com/stable/key-executives?symbol=MPLX). - alpha:projection-evidence:document:64b3cb972cfa51bd378d8ae0ca4dec971357f1282fe55304cdf82b93e05d23d1: [MPLX LP key executives](https://financialmodelingprep.com/stable/key-executives?symbol=MPLX). ## Rights | Field | Value | | --- | --- | | public_retrieval | allowed | | agent_retrieval | allowed | | redistribution | not_granted | | model_training | not_granted | | commercial_use | not_specified | | relationship_pathfinding | not_granted | | direct_contact | not_granted | ## Limitations - Absence of a leadership role, committee, or disclosure is not evidence that it does not exist. - Only explicitly published canonical company identity and current confirmed public roles are included. - Absence of a board, committee, executive, listing, or claim is not evidence that it does not exist. - Public retrieval does not grant redistribution, model-training, direct-contact, or relationship-pathfinding rights. - This Company Profile is an identity and evidence record, not an Alpha rating. ## Alternate representations - [Canonical profile](https://registry.alpha.ac/companies/mplx-lp) - [Public Markdown](https://registry.alpha.ac/companies/mplx-lp.md) - [Public JSON](https://registry.alpha.ac/api/public/companies/mplx-lp?format=record) - [JSON-LD](https://registry.alpha.ac/api/public/companies/mplx-lp?format=jsonld) - MCP resource: `alpha://companies/mplx-lp` at https://mcp.alpha.ac/mcp ## Connected governance records Only explicitly published, rights-cleared records. Missing records do not establish absence, safety, or complete coverage. ## Critical-risk oversight Snapshot as of 2026-11-02T20:34:29.948902+00:00; recorded 2026-11-02T20:34:29.948902+00:00. Every published assignment for this snapshot is listed. Only explicitly reviewed, rights-cleared assignments in effect on the as-of date, in the company's own wording. An assignment shows where oversight is placed, not whether it is effective. Missing records do not establish absence.