ExxonMobil Corp. (NYSE: XOM) and Rex Tillerson agreed to sever all ties to comply with conflict-of-interest requirements as the company's former chairman and CEO awaits confirmation as U.S. secretary of state.

If his appointment is confirmed, the value of more than 2 million deferred ExxonMobil shares (worth about $182 million at closing on Jan. 3) that Tillerson would have received over the next 10 years will be transferred to an independently managed trust, the company said in a statement.

The share awards will be canceled and Tillerson will also surrender entitlement to more than $4.1 million in cash bonuses, scheduled to pay out over the next three years, and other benefits, ExxonMobil said.

Separately, Tillerson also committed to the State Department that, if confirmed, he would sell the more than 600,000 ExxonMobil shares he currently owns, the company said.

ExxonMobil said last month its president, Darren Woods, will become CEO and chairman in January following the retirement of Tillerson.

Tillerson could face a rocky confirmation process, given concerns among both Democrats and Republicans about his ties to Russia.

ExxonMobil stock has gained 6.5% since election results of Nov. 8 up to close on Jan. 3 of $90.89.