Aug 2 (Reuters) - U.S. oil company Chevron Corp ( CVX )

said on Friday it was replacing several long-standing managers

in a reshuffle of senior jobs and that it was moving its

headquarters to Houston from San Ramon, California.

The changes come as the company works to cut costs and renew

leadership after a series of setbacks, including operational

challenges in Australia and Kazakhstan and an unexpected

arbitration dispute that has delayed its plan to acquire Hess

Corp. ( HES )

The management changes signal a generational change. Nigel

Hearne, executive vice president of Oil, Products & Gas, will

retire after 35 years with the company and be replaced from Oct.

1 by Mark Nelson, Chevron's ( CVX ) vice chairman.

Rhonda Morris, vice president and chief human resources

officer, will retire after 31 years with the company and will be

succeeded by Michelle Green, vice president, Human Resources,

Oil, Products & Gas, effective January 1, 2025.

Colin Parfitt, vice president, Midstream, will retire after

29 years with the company and be replaced on Oct. 1 by Andy

Walz, currently president, America's Products.

Earlier this year, CFO Pierre Breber also retired.

CALIFORNIA

Chevron ( CVX ) said it would relocate the company's headquarters

from San Ramon, where it was born 145 years ago as Pacific Coast

Oil Co, to Houston. The company has been bitterly contesting

state regulations on its oil producing and refining operations

in the state.

California's oil output a century ago amounted to it being

the country's fourth-largest crude producer, but oil majors have

been pulling out amid rising taxes, climate regulations and

depleting oil fields.

Chevron ( CVX ) expects all corporate functions to migrate to

Houston over the next five years. Positions that support its

California operations, which includes oil fields and two

refineries, will remain in San Ramon, it added.

Chevron ( CVX ) CEO Wirth and Vice Chairman Mark Nelson will move to

Houston before the end of 2024, the company said.

Chevron ( CVX ) has roughly 7,000 employees in the Houston area and

about 2,000 employees in San Ramon.