Pertamina’s Upstream Assets and Organization

The Sepinggan Field in East Kalimantan – Photo courtesy of Heru Suparto

PT Pertamina (Persero) is the national oil company of Indonesia, and also the largest company in Indonesia. It is the parent holding company of all the many Pertamina subsidiary companies.

As an integrated oil company, Pertamina involves in oil and gas exploration and production, refining and petrochemicals, gas distribution through pipelines, distribution of fuels and lube oil to every corner of the land. 

On the upstream side, Pertamina owns many oil fields and work areas and has vast and expansive oil exploration and production operations in Indonesia. It also has oil and gas interests in several other countries.

Pertamina’s upstream oil and gas interests are under the wings of PT Pertamina Hulu Energi (PHE). It is the sub-holding company of PT Pertamina (Persero) in charge of its entire upstream oil and gas assets and operations.

The assets include oil and gas assets that Pertamina itself develops, assets it acquired from BPM (Bataafse Petroleum Maatschappij), assets it acquired from international companies upon the expiry of their production sharing contracts, and its exploration work areas.

As Pertamina’s oil fields are located in many islands of Indonesia covering a vast area of more than 113,000 Km2, its assets and operations are divided into five regions. Each region is further divided into zones.

Here are the five regions including the zones under each region and their leadership teams.

REGION 1- Sumatera

Pertamina’s assets in Sumatera fall under Region 1 and they are managed under PT Pertamina Hulu Rokan (PHR).

Consisting of four zones, Pertamina Hulu Rokan manages the following assets:

  • In Zone 1 – North Sumatera Offshore (NSO), North Sumatera Basin (NSB), Rantau, Pangkalan Susu, West Glagah Kambuna, Siak, Kampar, Lirik, Jambi, Jambi Merang, Jabung
  • In Zone 2 – North Rokan (Rokan Utara)
  • In Zone 3 – South Rokan (Rokan Selatan)
  • In Zone 4 – Ogan Komering, Raja Tempirai, Ramba, Corridor, Prabumulih, Limau, Pendopo, Adera 

Here is the current leadership team stewarding Pertamina’s exploration and production activities in Region 1.

  • Novy Hendri – VP Exploration
  • Tri Sasongko – VP Development and Drilling
  • Junizar Harman – VP Operation and Production
  • Saptiadi Nugroho – VP Business Support
  • Ani Surakhman – General Manager of Zone 1
  • Ahmad Miftah – General Manager of Zone 4

REGION 2 – Java and Natuna

Region 2 covers Pertamina upstream activities in West Java and the Natuna Sea, and they are managed under PT Pertamina Eksplorasi dan Produksi (PEP).

Here are the zones in Region 2 and the assets under each zone.

  • Zone 5 – Offshore North West Java (PHE ONWJ), Abar, Anggursi
  • Zone 6 – Offshore South East Sumatera (PHE OSES)
  • Zone 7 – Tambun, Subang, Jatibarang, East Natuna, The Natuna Sea Block A

Here is the new leadership team of Region 2.

  • Muharram Jaya – VP Exploration
  • Merry Luciawaty – VP Development and Drilling
  • Wisnu Hindadari – VP Operation and Productions
  • Bongbongan Tampubolon – VP Business Support
  • Achmad Agus Miftakhurrohman – General Manager of Zone 5
  • Cosmas Supriatna – General Manager of Zone 6
  • Astri Pujianto – General Manager of Zone 7

REGION 3 – Kalimantan

Region 3 assets and operations are located in Kalimantan, and PT Pertamina Hulu Indonesia (PHI) is the operation holding company of Pertamina in Region 3.

Here are the zones in Region 3 and the assets in each zone:

  • Zone 8 – Pertamina Hulu Mahakam (PHM), Pertamina West Ganal (PHWG), East Sepinggan
  • Zone 9 – Pertamina Hulu Sanga Sanga (PHSS), Sangata, Maratua, Tanjung
  • Zone 10 – Pertamina Hulu Kalimantan Timur (PHKT), Bunyu, Tarakan, Nunukan, East Ambalat, Simenggaris, Ambalat, Bukat

Here is the leadership team supervising Pertamina’s exploration and production activities in Region 3.

  • Bayu Giriansyah – VP Exploration
  • Arief Prasetyo Handoyo – VP Development and Drilling
  • Rachmad Wibowo – VP Production
  • Satya Nugraha – VP Business Support
  • Agus Amperianto – General Manager of Zone 8 
  • Andri Haribowo – General manager of Zone 9
  • Raam Krisna – General Manager of Zone 10

REGION 4 – East Java and Eastern Part of Indonesia

Pertamina’s oil and assets located in the eastern part of Indonesia and East Java are under Region 4.

PT Pertamina Eksplorasi dan Produksi Cepu (PEPC) is the operation holding company in charge of Region 4.

Here are the zones in Region 4 and their assets:

  • Zone 11 – Alas Dara Kemuning (PEPC ADK), Cepu, West Madura Offshore (PHE WMO), Randugunting, Sukowati, Poleng, Tuban East Java
  • Zone 12 – Jambaran Tiung Biru (JTB), Banyu Urip
  • Zone 13 – Donggi Matindok, Senoro Tolidi, Makassar Strait
  • Zone 14 – Papua, Salawati, Kepala Burung, Babar Selaru, Semai

Here is the current leadership team of Region 4.

  • Ali Sundja – VP Development and Drilling
  • Muhamad Arifin – VP Operation and Production
  • Fransiono Lazarus – VP Business Support
  • Dedy Syam – General Manager of Zone 11
  • Iman Nur Akbar – General Manager of Zone 13
  • Djudjuwanto General Manager of Zona 14

REGION 5 – International   

Pertamina also has oil and gas interests in several countries outside Indonesia. Its international E&P operations and assets fall under Region 5 and they are under the management of PT Pertamina International Eksplorasi dan Produksi (PIEP).

Here are the zones of Region 5 and their locations:

  • Zone 15 – Algeria
  • Zone 16 – Iraq
  • Zone 17 – Malaysia  

Here is the current leadership team supervising Pertamina’s international exploration and production activities.

  • Fuji Koesumadewi – VP Exploration
  • Yosi Hiroshiadi – VP Development and Drilling 
  • Charles P. Sialagan – VP Operation and Production
  • Ria Noveria – VP Business Support
  • Edwil Suzandi – Country Manager in Algeria

This article is adapted by Jamin Djuang – Chief Learning Officer of LDI Training – from information published by Pertamina and various other sources.

History of the Giant Attaka Oilfield

Pres. Soeharto di Santan

Fifty years ago, Union Oil of California (UNOCAL) along with its partner, INPEX, discovered the giant offshore oil field Attaka in East Kalimantan.

General Soeharto, the president of Indonesia at that time, then inaugurated the Attaka field and the Santan terminal on 22 January 1973.

In the early days of Attaka and the Santan terminal, there were many workers from the US and UK. Over time, they were gradually replaced by Indonesian workers.

Unocal operated the oil field for 25 years from its East Kalimantan headquarters located in Balikpapan. The Attaka field was subsequently acquired and operated by Chevron, and then by Pertamina Hulu Kalimantan Timur beginning on 25 October 2018.

At 50 years old, the field is still producing today.

Thousands of oil people – expatriates from many nations and Indonesians from every region – have visited and worked in the offshore facilities and the onshore Santan terminal including me.

I worked in the Attaka field as “Production Foreman” in 1980. I hope you like this snippet of the history of Attaka and the Santan terminal.

If you like to read more about the Attaka field here is The Ten Interesting Facts About Attaka.

WRITTEN BY

Jamin Djuang – Chief Learning Officer of LDI Training and author of The Story of Oil and Gas: How Oil and Gas Are Explored, Drilled and Produced

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The Top 10 Crude Oil Producing Companies in Indonesia in 2018

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The photo showed the drilling activity at the West Seno field, the first deepwater field in Indonesia. The photo was taken by Dr. Tony Tirta.

The average crude oil production in Indonesia in 2018 is 803,000 barrels per day according to SKK Migas of Indonesia.

Here are the top ten crude oil-producing companies in Indonesia in 2018.

Chevron Pacific Indonesia – 209,000 BOPD

Chevron is the biggest oil producer in Indonesia in 2018 and has been a leading oil producer in Indonesia for more than 90 years. It started operating in Indonesia in 1924 under Standard Oil Company of California (SOCAL).

Chevron operated oilfields in Sumatera and East Kalimantan. It’s East Kalimantan assets came from the acquisition of Unocal in 2005. Chevron handed back all the assets in East Kalimantan to the Indonesia government on October 24, 2018, after 50 years of operation under Unocal and Chevron.

Currently, Chevron’s oil production comes mainly from the oil fields located in Riau, Sumatera under the Rokan Production Sharing Contract. The biggest oil field in the Rokan PSC is the Duri field which has been under steam-flood since 1985 and is one of the largest steam flood projects in the world. Minas is another giant oil field that Chevron discovered and operated in the Rokan Block.

ExxonMobil Cepu Ltd – 208,000 BOPD

ExxonMobil Cepu Ltd is the operator of the Cepu block located in Central Java and East Java. The Cepu Cooperation Contract (KKS) was signed on 17 September 2005 and will continue until 2035. ExxonMobil holds a 45% interest in the Cepu block.

ExxonMobil started exploration in 1999, and the oil from the Banyu Urip field started to flow in December 2008.

Pertamina EP – 79,000 BOPD

Pertamina EP operated 21 oil and gas fields located in various parts of Indonesia. These oilfields are managed under five asset groups based on their geographical locations.

Located in North Sumatera and some parts of South Sumatera, the Asset One oilfields include Rantau Field, Pangkalan Susu Field, Lirik Field, Jambi Field, dan Ramba Field.

Located in South Sumatera, the Asset Two oilfields include Prabumulih Field, Pendopo Field, Limau Field dan Adera Field.

Located in West Jawa, the oilfields included in Asset Three are Subang Field, Jatibarang Field dan Tambun Field.

Located in Central and East Jawa, the Asset Four oilfields include Cepu Field, Poleng Field dan Matindok Field.

Located in the eastern part of Indonesia, the oilfields in Asset Five are Sangatta Field, Bunyu Field, Tanjung Field, Sangasanga Field, Tarakan Field dan Papua Field.

Pertamina Hulu Mahakam – 42,000 BOPD

Pertamina Hulu Mahakam became the operator of the oil and gas fields located in the Mahakam Block on 1 January 2018. The fields were previously discovered and operated by Total along with Inpex as its partner. They acquired the block in 1966.

Several giant oil and gas fields are located in this block such as the Handil field, the Tunu field, and the Peciko field.

Pertamina Hulu Energi OSES (Offshore South East Sumatera) – 30,000 BOPD

Pertamina Hulu Energi OSES became the operator of the oil fields in Block South East Sumatera on September 6, 2018. The fields were previously operated by CNOOC, China National Offshore Oil Company.

Pertamina Hulu Energi ONWJ – 29,000 BOPD

Pertamina Hulu Energi ONWJ (PHE ONWJ) is currently the operator of the  Offshore North West Java (ONWJ) production sharing contract following the change of company ownership from BP to Pertamina in July 2009.

The contract area, located in the Java Sea, covers an area of approximately 8,300 square kilometers – stretching from the North of Cirebon to Kepulauan Seribu.

The giant Ardjuna field is located in this Production Sharing Contract area. It was discovered by ARCO – Atlantic Richfield Company –  in 1969 and operated by ARCO until BP – British Petroleum – acquired ARCO in 2000.

The production facilities consist of 670 wells, 170 shallow water platforms, 40 processing and service facilities and some 1,600 kilometers of sub-sea pipeline.

Medco EP Natuna – 16,000 BOPD

Medco EP Natuna, a subsidiary of Medco Energi, is the operator of the South Natuna Sea Block B. The field was initially operated by ConocoPhillips until Medco Energi acquired it in 2016.

Besides producing oil, Medco EP Natuna also supplies gas to Singapore using a 656 KM long 28” subsea pipeline.

Petronas Carigali (Ketapang) – 15,000 BOPD

Petronas Carigali Ketapang operates the Bukit Tua Field located in the Ketapang Block in East Java. Bukit Tua is an oil field but with a significant amount of associated gas. The offshore field is situated at a water depth of about 57 m.

The production facilities consist of wellhead platforms, an FPSO – Floating Production, Storage and Offloading – and onshore receiving facilities (ORF) in Gresik.

PetroChina International Jabung – 14,000 BOPD

PetroChina International Jabung operates the prolific Jabung Block located in Jambi in Central Sumatera.

The company produces crude oil, condensate, LPG and gas. PetroChina supplies gas to Singapore using a 450 KM long subsea pipeline.

An interesting aspect of the block is that PetroChina discovered the fractured basement rock contains a significant quantity of gas that can flow at significant rates.

Pertamina Hulu Kalimantan Timur – 13,000 BOPD

Pertamina Hulu Kalimantan Timur operates the East Kalimantan-Attaka Work Area. Chevron was the previous operator of the work area until it handed over the operatorship to Pertamina on October 25, 2018.

Attaka, the famous giant oil field is located in this block. The Attaka field was discovered and operated by Unocal until Chevron acquired it in 2005.

The oil fields in this work area are in the late declining phase. Around one billion barrels of oil and 3 TCF of gas have been produced from this work area.

This article was written by Jamin Djuang, a published author of “The Story of Oil and Gas: How Oil and Gas Are Explored, Drilled and Produced” for readers who have not seen an oil field.

10 Interesting Facts About The Super-Giant Oil Field of Attaka

Attaka platform - 22051165_10203849223866343_116962473911316990_o
Attaka central platforms from left to right: Wellhead platform, Central Processing Platform, Compression Platform, and Quarter Platform

Attaka field, a giant offshore oil field located 12 miles from the shore of East Kalimantan in Indonesia was discovered by Union Oil of California (UNOCAL) in August 1970. Attaka field is considered a giant oil field having 1023 MMBOE of recoverable reserves.

General Soeharto, the president of Indonesia at that time, inaugurated the Attaka field and the Santan terminal on 22 January 1973.

Santan terminal is the onshore complex where the crude oil from the Attaka field is processed and stored before it is exported by oil tankers. Santan terminal is also where the produced gas is processed before it is sent to Badak LNG for liquefaction.

Unocal along with its 50-50 partner, Inpex, operated the Attaka field until it was acquired by Chevron.  Pertamina Hulu Kalimantan Timur assumed the operatorship of the field beginning on 25 October 2018.

Here are the interesting facts about the Attaka unit:

  1. Two years after its discovery, the Attaka field started producing oil in November 1972, making it the first offshore field in Indonesia.
  2. It has 10 platforms, 6 of which are remote wellhead platforms producing oil and gas from 109 wells.
  3. Five subsea wells were completed in 1981-1984 to produce the oil accumulation in areas out of reach of the existing remote platforms. These are the first subsea completions in Indonesia and in Asia.
  4. Following the first discovery well, the Attaka Well 1A, seven appraisal wells were drilled to assess to size and potential of the hydrocarbon accumulation.
  5. The huge Attaka reservoir, formed in the very prolific Kutei basin, is a faulted anticline. It has an areal closure of 8000 acres. Attaka field is one of five super-giant fields discovered in the Kutei basin.
  6. Its oil reserves are attributed to oil found in 22 separate sands at a depth between 2800 feet and 7600 feet.
  7. Attaka sands have very high permeability. It is as high as 5 Darcy in some wells.
  8. Attaka field daily oil production was 110,000 BOPD at its peak and gas production was 150 MMSCFPD.
  9. A significant milestone was reached when cumulative oil production of 600 million barrels was recorded at 6:42 PM on March 7, 2001. Cumulative gas production in that same year was 1.3 trillion SCF.
  10. Attaka field has more than 50 sands with variable oil reserves. Reservoir sand thickness ranges from 5 to 100 feet. To produce them economically, multiple zone completion method using dual tubing strings and multiple packers was selected. This method allows the engineers the flexibility to select from which of the 2 to 4 perforated zones in each well they would like to produce from.

Jamin Djuang