Indonesia - The Main Oil/Gas Fields & Operators.
Crude oil in this archipelago had been produced since 1893, when
the islands were ruled by the Dutch and the oil helped turn Shell into a
leading conglomerate this century. An independent republic of Indonesia
was first proclaimed in 1945 and the war for independence from Dutch
rule ended in 1949, when the Indonesians finally took control of their
resources. The following are brief profiles of the main oil and gas
fields producing in Indonesia and their operators. Pertamina, the state
concern established after the war, owns all assets related to the
hydrocarbon industry, although now it is being reshaped and some of the
assets are to be privatised. The company operates many small and medium
fields in various regions. They include all the fields that were
discovered and operated by the Dutch before independence and those
fields which Pertamina has discovered since the 1960s. It has offered
many of its marginal oilfields to foreign and some local companies for
EOR and further development under Technical Assistance Contracts (TACs).
The state company has discovered a number of gas fields in recent years
and has offered some of them under both production sharing contracts
(PSCs) and TACs. Pertamina's exploration unit has been active in
various parts of Western Indonesia and has made a number of discoveries.
The company's upstream assets are valued at about $900m. Its proven
oil and gas reserves are estimated independently at about 650m barrels
of oil equivalent. The main oil producing regions are: Riau province,
mostly in Central Sumatra; the Java Sea; East Kalimantan; and Natuna.
The main gas producing areas are East Kalimantan and Arun (North
Sumatra). In the next decade, the main gas producing regions would be
led by Natuna and Irian Jaya. The largest island in Indonesia, Sumatra,
has about 70% of the country's proven and probable oil reserves and
accounts for 60% of its oil production. It has three main hydrocarbon
provinces. Central Sumatra is the biggest oil province in the country
and is the location of one of the most remarkable oil production systems
in the world, including Indonesia's two giants Minas and Duri
oilfields. It has a small number of gas fields with relatively limited
reserves. North Sumatra is mainly a gas province. South Sumatra is an
oil province but the fields are small. Of the foreign investors in
Indonesia's upstream, Inpex of Japan is the biggest with a broad
portfolio of assets worth more than US$3.9 bn and oil and gas reserves
of over 2.2 bn barrels of oil equivalent. Mobil comes next, with assets
worth over $3.4 bn and about 1.2 bn barrels oe of oil and gas reserves.
Total is third, with assets exceeding $3.3 bn and almost 2 bn barrels oe
in reserves. The other major investors are Caltex ($2.5 bn with 2.7 bn
barrels oe), Arco ($1.2 bn with over 700m barrels oe), Unocal ($850m
with 600m barrels oe), and Lasmo ($780m with 450m barrels oe).