[1] The plan proposed in October 1965 foresaw a pipeline with a capacity of about 10 million tonnes per annum to supply Yugoslav refineries in Croatia, Bosnia and Herzegovina, and Vojvodina in Serbia with a branch line to the Hungarian border or through Ljubljana to Graz in Austria.

[2] The project foresaw to supply refineries in Sisak, Lendava, Bosanski Brod, Novi Sad and Pančevo.

[1] In June 1966 it was published that the pipeline was to have a diameter of 510 millimetres (20 in) and that the first 176 kilometres (109 mi) long section would lead from Bakar or Rijeka to Sisak.

[3] Another proposal about a 328 kilometres (204 mi) long pipeline from the port of Ploče through Sarajevo to Bosanski Brod and then to Vukovar, preferred by Bosnian and Serbian authorities and companies, was disapproved.

[2] In 1966, Czechoslovakia offered to participate in the construction of the northern branch of Adria pipeline by supplying pipes and equipment.

Early in June 1967, preliminary talks began between Yugoslav and Austrian experts about a Bakar-Vienna pipeline (via Hungary) with a total annual capacity of 22 million tonnes.

On 7 May 1968, Czechoslovakia signed a memorandum with Iran called for the supply of 15 to 20 million tonnes over a 10 year period, beginning in 1970.

By August 1968 an agreement between the Yugoslav, Hungarian and Czechoslovak participants was reached on the joint construction of the Bakar-Sisak-Hungary pipeline.

[5] The construction of the Adria pipeline started in 1984 and it became fully operational at the end of 1989 [6](alternative sources cite 1990).

[8] The northern branch of Adria pipeline was re-opened at the end of 1995 and used since then occasionally mainly in reverse mode.

From Omišalj the main line runs to Sisak, while spur pipelines connects terminal and refinery in Urinj.

From there, the branch section runs to Bosanski Brod in Bosnia and Herzegovina, while the main line continues to Sotin at the Croatian–Serbian border.

As an alternative, the combination of Druzhba Adria with the proposed Pan-European Pipeline has been suggested for transportation of Russian oil to Trieste.