Nancy Buese
Director/Board Member at
CHUBB LIMITED
Net worth: 7 M $ as of 2026-06-29
Profile
Nancy K. Buese is Chief Financial Officer & Executive Vice President at Newmont Corp. and Chief Financial Officer & Senior Vice President at MarkWest Energy GP LLC. Ms. Buese is also on the board of The Williams Cos., Inc. In the past Ms. Buese held the position of Chief Financial Officer & Senior Vice President of MarkWest Hydrocarbon LLC, Chief Financial Officer & Executive Vice President at MarkWest Energy Partners LP, Chief Financial Officer of Natural Supplement Association LLC, Chief Financial Officer & Executive Vice President for MPLX LP, Chief Financial Officer & Executive Vice President of MPLX GP LLC, Vice President of NGL TM LLC and Partner at Ernst & Young LLP. Nancy K. Buese received an undergraduate degree from the University of Kansas.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-03-22 | 70,105 ( 0.01% ) | 4 M $ | 2026-06-29 | |
| 2026-03-26 | 16,833 ( 0% ) | 2 M $ | 2026-06-29 | |
| 2026-05-20 | 3,746 ( 0% ) | 1 M $ | 2026-06-29 |
Latest news about Nancy Buese
Nancy Buese active positions
| Companies | Position | Start |
|---|---|---|
| CHUBB LIMITED | Director/Board Member | 2023-05-16 |
MarkWest Energy GP LLC
 MarkWest Energy GP LLC Oilfield Services/EquipmentIndustrial Services Oil And Gas Field Services Not Elsewhere Classified | Director of Finance/CFO | 2005-10-31 |
Former positions of Nancy Buese
| Companies | Position | End |
|---|---|---|
| CRH PLC | Director of Finance/CFO | 2026-05-11 |
| BAKER HUGHES COMPANY | Director of Finance/CFO | 2025-02-23 |
| WILLIAMS COMPANIES, INC. | Director/Board Member | 2023-02-09 |
| NEWMONT CORPORATION | Director of Finance/CFO | 2022-10-31 |
| UMB FINANCIAL CORPORATION | Director/Board Member | 2017-03-31 |
Training of Nancy Buese
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
90
1st degree connections
16
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 16 |
|---|---|
Newmont Corp.
 Newmont Corp. Precious MetalsNon-Energy Minerals Provides gold, copper, zinc, lead and silver mining services | Non-Energy Minerals |
UMB Financial Corp.
 UMB Financial Corp. Major BanksFinance Operates as a bank holding company which provides banking services | Finance |
The Williams Cos., Inc.
 The Williams Cos., Inc. Oil & Gas PipelinesIndustrial Services Engages in gathering, transmission, storage and transportation of natural gas | Industrial Services |
MarkWest Hydrocarbon LLC
 MarkWest Hydrocarbon LLC Oilfield Services/EquipmentIndustrial Services Provides natural gas processing services | Industrial Services |
NGL TM LLC
 NGL TM LLC Wholesale DistributorsDistribution Services Markets and distributes petroleum products | Distribution Services |
Ernst & Young LLP
 Ernst & Young LLP Miscellaneous Commercial ServicesCommercial Services Provides assurance, auditing, tax, legal, technology and consulting & managed services | Commercial Services |
MarkWest Energy Partners LP
 MarkWest Energy Partners LP Integrated OilEnergy Minerals Owns and operates natural gas midstream service businesses & provides related distribution services | Energy Minerals |
MarkWest Energy GP LLC
MarkWest Energy GP LLC Oilfield Services/EquipmentIndustrial Services Oil And Gas Field Services Not Elsewhere Classified | Industrial Services |
CRH Plc
 CRH Plc Construction MaterialsNon-Energy Minerals Produces and supplies cement, ready-mix concrete and aggregates | Non-Energy Minerals |
Natural Supplement Association LLC
 Natural Supplement Association LLC Pharmaceuticals: OtherHealth Technology Manufactures & distributes sports nutrition supplements | Health Technology |
University of Kansas
 University of Kansas Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Zea2 LLC
 Zea2 LLC Miscellaneous Commercial ServicesCommercial Services Develops a cellulose-based bio refinery platform capable of producing advanced ethanol, fuels and chemicals | Commercial Services |
MPLX LP
 MPLX LP Oil & Gas PipelinesIndustrial Services Owns, operates, develops and acquires pipelines and other midstream assets | Industrial Services |
MPLX GP LLC
 MPLX GP LLC Oil & Gas PipelinesIndustrial Services Owns, operates, develops and acquires pipelines for petroleum and energy industries | Industrial Services |
Chubb Ltd.
 Chubb Ltd. Property/Casualty InsuranceFinance Operates as a holding company for a family of property and casualty insurance companies | Finance |
Baker Hughes Co.
 Baker Hughes Co. Contract DrillingIndustrial Services Engages in oilfield services, manufacturing of turbo machinery and oilfield equipment & provides digital solutions | Industrial Services |
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