Four petitioners filed a case at Kenya’s high court seeking to stop the government’s plan to nationalize the importation of petroleum products, saying it violates the constitution.

The filing this week comes after the Energy Ministry advanced a government-to-government arrangement to take over fuel imports from private companies. That would effectively lock out non-public suppliers such as OryEnergies and Vivo Energy.

The plan “fails the principal test of equity, equality,” according to court documents filed by Ndegwa & Ndegwa Advocates on behalf of the petitioners. They asked the court to find the government’s plan unconstitutional and in violation of its procurement rules.

If enacted, the policy shift envisages terms allowing the government to make payments after at least six months instead of within a week currently, according to Energy Secretary Davis Chirchir. The government designed the plan to help ease pressure on Kenya’s foreign-exchange reserves, which have fallen to an equivalent of less than four months of import cover. 

Under the plan, Kenya has sought a $4.8 billion credit facility from lenders including KCB Bank, Standard Bank Group and Abu Dhabi Commercial Bank to enable it secure petroleum and defer payments for cargoes.

The move “amounts to unfair practice as an unconscionable representation that is excessively one sided” and favors the supplier rather than the consumer, the petitioners argued. The government should have negotiated how to stabilize its dollar reserves “without having to frustrate” oil-marketing companies and “technically kicking them out of business,” the filings said.

Judge Richard Mwongo is expected to address the matter on Friday, according to a court official.