He congratulated him on Sunday in a statement signed by Senior Special Assistant to the President on Media & Publicity, Garba Shehu, urging him to continue to show grace and humility in victory.
The President also commended the election process in the state, reiterating the government’s commitment to free and fair elections.
“My commitment to free and fair elections is firm because without free and fair elections, the foundation of our political and moral authority will be weak,” he said.
“I have consistently advocated for free and fair elections in the country because it is the bedrock of true democratic order.
“Democracy will mean nothing if the votes of the people don’t count or if their mandate is fraudulently tampered with.”
Speaking further, President Buhari also commended the people of the state, the parties, candidates and security agencies for conducting themselves responsibly.
It was a dramatic process that saw Obaseki run a governorship race against Ize-Iyamu for a second time in four years.
Both men faced each other in 2016, albeit with Obasek flying the flag of the APC and Ize-Iyamu flying that of the PDP.
A political rift between the governor and Oshiomhole which spiraled beyond the state to national politics, saw both men switch parties and square up against each other on platforms they once criticised.
The campaign, characterised by drama and controversy that did not spare the State House of Assembly, was tempered by the intervention of the Oba of Benin to calm fears that the poll could turn violence heightened.
A peace accord was also signed by all the candidates days before the poll as stakeholders made concerted efforts to ensure a successful poll.
Overall, most of the stakeholders rated the exercise as largely peaceful, free and fair.