TASIS government in Sudan denied any agreements on oil revenue sharing following developments around the Heglig oil fields.
South Sudanese forces entered Heglig last week to secure facilities after the Rapid Support Forces took control, according to officials in Juba.
Details of the security arrangements remain unclear, as reports circulated of possible understandings between authorities in Port Sudan and Nyala.
Burhan’s army-aligned administration in Port Sudan has not issued any public comment on the claims.
US analyst Cameron Hudson said the Rapid Support Forces could earn about $200,000 a day from oil revenues in the area.
Investigative journalist Iyad Hussein reported a proposed $11 per barrel fee, allegedly divided between Port Sudan and Nyala.
Founding government spokesman Aladdin Awad Naq rejected the report, saying contacts were limited to South Sudan only.
He accused Burhan’s army of bombing oil facilities after losing Heglig, forcing production and exports to stop.
South Sudan’s army chief Paul Nang said leaders agreed to deploy South Sudanese troops to protect the oil fields.
Oil output has fallen sharply, with South Sudan producing 65,000 barrels per day and Sudan’s production nearly collapsing.
