Mark Lashier
Chairman and Chief Executive Officer
Legacy
Leads Phillips 66 through portfolio optimization, operating reliability, and shareholder-return priorities.
Phillips 66
Explore Phillips 66
Core profile pages, annual revenue records, and related research hubs for this company.
Leadership History
2 leaders · Full leadership timeline
Phillips 66 is not an upstream oil explorer. Its core job is conversion: buying hydrocarbons, processing them, moving them, and selling fuels, chemicals, lubricants, and specialty products into end markets. That makes the company highly exposed to margins and utilization rather than simply to oil prices.
Phillips 66 makes money by refining crude oil into transportation fuels, moving and fractionating natural gas liquids through midstream assets, earning equity income from Chevron Phillips Chemical, and selling fuels, lubricants, and specialty products through marketing channels. Its results depend less on the headline oil price and more on crack spreads, feedstock differentials, utilization, logistics fees, and product demand.
Chairman and Chief Executive Officer
Leads Phillips 66 through portfolio optimization, operating reliability, and shareholder-return priorities.
Former Chairman and CEO
Led Phillips 66 through its first decade as an independent public company.
Phillips 66 faces refining-margin volatility, planned and unplanned refinery downtime, environmental regulation, renewable fuels overcapacity, commodity-price swings, and pressure to prove that its asset portfolio can earn strong returns through the energy transition.