BP is taking steps to simplify its organizational structure by combining its regions, corporates and solutions organization into businesses and functions and restructuring the roles of its executive team, the company announced in an April 18 press release.

BP will now be supported by five functions: finance; technology; strategy; sustainability and ventures; people and culture; and legal. The company will continue to operate its three businesses—production and operations, gas and low carbon energy and customers and products—enabled by shipping and trading.

BP’s executive team is also reducing to 10 members with the retirement of Executive Vice President of Gas and Low Carbon Energy Anja-Isabel Dotzenrath. The previous leader of the now integrated regions, corporates and solutions organization, William Lin, will replace Dotzenrath.

Lin has worked for BP for 28 years, holding senior management roles in Asia Pacific, Egypt and the U.S., and as head of BP’s group chief executive office and as COO of the company’s international upstream portfolio.

Executive Vice President of Innovation and Engineering Leigh-Ann Russell is also leaving BP and will be replaced by Emeka Emembolu as the new executive vice president of technology.

Emembolu has been with BP for 25 years, starting as an offshore engineer before running BP’s North Sea business. He has also held a range of technical positions leading BP’s business in the Gulf of Mexico, Canada, North Africa and Alaska.

BP said the organizational changes will reduce duplication and reporting line complexity, but will not affect BP’s financial reporting structure.

CEO Murray Auchincloss said in the announcement that “BP’s destination from IOC [international oil company] to IEC [integrated energy company] is unchanged—and we need to deliver as a simpler, more focused and higher value company. These changes will help us do just that, reducing complexity within BP, allowing our team to focus on delivering our priorities and growing the value of BP.”

Regional teams will be restructured to report to their most relevant businesses, particularly teams formerly part of regions, corporates and solutions.

The Latin America team will now report to production and operations, led by Gordon Birrell, and the America and China teams will now report to gas and low carbon energy, led by Lin. The strategic corporates and partnerships team and central non-operated joint ventures team will now also report to Lin. The U.K. and Europe teams will now report to customers and products, led by Emma Delaney.