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Lawrence Ziemba
Director/Board Member at
PBF ENERGY INC.
Net worth: 3 M $ as of 31/05/2026
Profile
Lawrence Michael Ziemba is currently Independent Director at Plains All American Pipeline LP, Plains GP Holdings LP, PAA GP Holdings LLC, PBF Logistics GP LLC, and Plains All American GP LLC since 2020.
He is also Independent Director at PBF Energy, Inc. since 2023 and Trustee at Duchesne Academy of the Sacred Heart.
Former roles include Vice Chairman at American Petroleum Institute, Inc., Chairman at The American Fuel & Petrochemical Manufacturers and WRB Refining LLC, Director at Western States Petroleum Association, Independent Director at PBF Logistics LP from 2019 to 2022, Manager-Planning & Business Development at Unocal Corp., President-Global Refining at ConocoPhillips from 2001 to 2012, President-International Operations at Phillips Petroleum Co., EVP-Refining, Product Development & Procurement at Phillips 66 from 2012 to 2017, and Vice President-Northern California Operations at Tosco Corp.
from 1998 to 2001.
Education includes an MBA from The University of Chicago, conferred in 1985.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 23/03/2026 | 87,780 ( 0.04% ) | 2 M $ | 31/05/2026 | |
| 28/04/2026 | 21,016 ( 0.02% ) | 855 351 $ | 31/05/2026 | |
| 23/03/2026 | 2,346 ( 0% ) | 57 125 $ | 31/05/2026 | |
| 23/03/2026 | 2,346 ( 0% ) | 52 621 $ | 31/05/2026 |
Lawrence Ziemba active positions
| Companies | Position | Start |
|---|---|---|
| PLAINS GP HOLDINGS, L.P. | Director/Board Member | 08/01/2020 |
| PLAINS ALL AMERICAN PIPELINE, L.P. | Director/Board Member | 01/01/2020 |
| PBF ENERGY INC. | Director/Board Member | 01/01/2023 |
Duchesne Academy of the Sacred Heart
 Duchesne Academy of the Sacred Heart Other Consumer ServicesConsumer Services Operates as a catholic school for girls | Director/Board Member | - |
PAA GP Holdings LLC
 PAA GP Holdings LLC Oil & Gas PipelinesIndustrial Services Engages in transportation, storage, terminalling and marketing of crude oil and refined products | Director/Board Member | 01/01/2020 |
PBF Logistics GP LLC
 PBF Logistics GP LLC Oilfield Services/EquipmentIndustrial Services Owns, leases, operates, develops and acquires crude oil and refined petroleum products terminals, pipelines, storage facilities | Director/Board Member | 01/01/2020 |
Plains All American GP LLC
 Plains All American GP LLC Oil & Gas PipelinesIndustrial Services Transports and markets crude oil and all other petroleum products | Director/Board Member | 01/01/2020 |
Former positions of Lawrence Ziemba
| Companies | Position | End |
|---|---|---|
| PBF LOGISTICS LP | Director/Board Member | 01/11/2022 |
| PHILLIPS 66 | Corporate Officer/Principal | 31/12/2017 |
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| ░░░░░ ░░░░░ | ░░░░░░░░░ ░░░░░░░░░░░░░░░░░ | ░░░░░░░░░░ |
| ░░░░░░░ ░░░░░░ ░░░░░░░░░ ░░░░░░░░░░░ | ░░░░░░░░░░░░░░ ░░░░░░ | - |
Training of Lawrence Ziemba
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
83
1st degree connections
19
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 19 |
|---|---|
Tosco Corp.
 Tosco Corp. Oil Refining/MarketingEnergy Minerals Refines crude oil and other feedstocks into petroleum products, including gasoline | Energy Minerals |
Unocal Corp.
 Unocal Corp. Integrated OilEnergy Minerals Provides petroleum exploration services | Energy Minerals |
Plains All American Pipeline LP
 Plains All American Pipeline LP Oil & Gas PipelinesIndustrial Services Provides crude oil and natural gas liquids pipeline operation, transportation, terminalling and storage services | Industrial Services |
ConocoPhillips
 ConocoPhillips Oil & Gas ProductionEnergy Minerals Engages in the exploration, production, transport, and marketing of crude oil, bitumen and natural gas | Energy Minerals |
Plains GP Holdings LP
 Plains GP Holdings LP Oil & Gas PipelinesIndustrial Services Operates as a holding company which engages in oil transportation | Industrial Services |
PBF Energy, Inc.
 PBF Energy, Inc. Oil Refining/MarketingEnergy Minerals Operates as petroleum refiners and suppliers | Energy Minerals |
The University of Chicago
 The University of Chicago Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Phillips Petroleum Co.
 Phillips Petroleum Co. Electronic Equipment/InstrumentsElectronic Technology International, integrated energy company. | Electronic Technology |
American Petroleum Institute, Inc.
 American Petroleum Institute, Inc. Wholesale DistributorsDistribution Services Wholesale crude petroleum and petroleum products from bulk liquid storage facilities | Distribution Services |
The American Fuel & Petrochemical Manufacturers
 The American Fuel & Petrochemical Manufacturers Chemicals: SpecialtyProcess Industries Manufactures fuel and petrochemical products | Process Industries |
Plains All American GP LLC
Plains All American GP LLC Oil & Gas PipelinesIndustrial Services Transports and markets crude oil and all other petroleum products | Industrial Services |
Duchesne Academy of the Sacred Heart
Duchesne Academy of the Sacred Heart Other Consumer ServicesConsumer Services Operates as a catholic school for girls | Consumer Services |
Western States Petroleum Association
 Western States Petroleum Association Integrated OilEnergy Minerals Engages in petroleum exploration, production, refining, transportation and marketing | Energy Minerals |
Phillips 66
 Phillips 66 Oil Refining/MarketingEnergy Minerals Engages in refining, marketing, midstream and chemicals businesses | Energy Minerals |
PAA GP Holdings LLC
PAA GP Holdings LLC Oil & Gas PipelinesIndustrial Services Engages in transportation, storage, terminalling and marketing of crude oil and refined products | Industrial Services |
WRB Refining LLC | |
PBF Logistics LP
 PBF Logistics LP Oil Refining/MarketingEnergy Minerals Owns, leases, acquires, develops and operates crude oil & refined petroleum products and provides logistics services | Energy Minerals |
PBF Logistics GP LLC
PBF Logistics GP LLC Oilfield Services/EquipmentIndustrial Services Owns, leases, operates, develops and acquires crude oil and refined petroleum products terminals, pipelines, storage facilities | Industrial Services |
University of Illinois At Urbana–Champaign
 University of Illinois At Urbana–Champaign Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
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