Factbox: Key Indonesia commodities not affected by quake

JAKARTA (Reuters) - The Indonesian island of Sumatra, which was hit by a powerful 7.7-magnitude earthquake on Wednesday, is home to some of the country's largest oilfields as well as its oldest liquefied natural gas terminal.

Sumatra is also a major producer of coffee, rubber and palm oil, and has three key ports for commodity exports -- Belawan port in North Sumatra, Dumai in Riau and Panjang in Lampung.

It also accounts for about 6 percent of coal output from Indonesia, the world's top thermal coal exporter.

Shipments and production of oil and gas, coffee, rubber and palm oil, appear unaffected so far. Mining operations of PT Timah Tbk, the world's largest integrated tin miner, and Hong Kong-listed gold firm G-Resources Ltd were also safe.

* RUBBER

Rubber production and shipments in North Sumatra -- the country's second largest producer located near the epicenter -- were unaffected, a trade official said.

* OIL & GAS

- Indonesia's Arun liquefied natural gas (LNG) plant in Aceh, in which Exxon Mobil holds a stake, was also operating normally after the quake, a plant official said.

- Operations at state oil and gas firm Pertamina's Dumai refinery, which has a capacity of 120,000 barrels per day, at Riau on Sumatra island, were also normal.

* MINING

- Gold miner G-Resources said operations at its Martabe gold and silver mine near the earthquake hit coastal town of Sibolga in North Sumatra were not affected by the quake.

- Operations at PT Timah Tbk, the world's largest integrated tin miner, in the Bangka-Belitung islands, off Sumatra, were not disturbed by the quake, Timah spokesman Abrun Abubakar said.

* COFFEE

Deliveries of high-quality arabica beans to Belawan port via Medan from the Takengon highland in Aceh were also expected to be normal, officials at the Indonesian Coffee Association said.

Indonesia is the world's fourth-largest coffee producer.

* PALM OIL

The earthquake jolted Medan, the provincial capital of North Sumatra, but palm oil shipments in nearby Belawan port, one of Indonesia's main export ports for commodities, were running normally, the Indonesian Palm Oil Producers Association said.

(Reporting by Fitri Wulandari; Editing by Clarence Fernandez)