Medco?s weekly drilling & exploration activities

Tuesday, November 29 2005 - 11:36 AM WIB

PT MEDCO ENERGI INTERNASIONAL TBK & SUBSIDIARIES
WEEKLY DRILLING & EXPLORATION ACTIVITIES
Week ending November 25, 2005

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EXPLORATION / APPRAISAL WELLS

Mudi B-24, Tuban PSC JOB, East Java, Indonesia

Interest

25% through PT Medco E&P Tuban

Operator

PetroChina International

Type

Oil and Gas Development

Status at 0600hrs

Drilling directionally 12 ?" hole to 9152' MD / 8788' TVD

Next Plan

Drilling 12 ?" hole to 9 5/8" csg poit.

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Jata-4ST, South Sumatra Extension PSC, South Sumatra, Indonesia

Interest

100% through PT Medco E&P Indonesia

Operator

PT Medco E&P Indonesia

Type

Oil and Gas Exploration

Status at 0600hrs

Shut in well for PBU, while waiting for separator.

Next Plan

Open well for stable rate, run deliverability test.

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Rengas-1, South Sumatra Extension PSC, South Sumatra, Indonesia

Interest

100% through PT Medco E&P Indonesia

Operator

PT Medco E&P Indonesia

Type

Oil and Gas Exploration

Status at 0600hrs

Shut in well for PBU.

Next Plan

Continue testing.

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Gesang-1, Merangin-1 PSC, Jambi, Indonesia

Interest

100% through PT Medco E&P Indonesia

Operator

PT Medco E&P Indonesia

Type

Oil and Gas Exploration

Status at 0600hrs

Ran 13 3/8" casing, modification and repair several rig parts

Next Plan

Drill ahead w/ 12 ?" bit to 9 5/8" casing point.

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Fariz-3, South Sumatra Extension PSC, South Sumatra, Indonesia

Interest

100% through PT Medco E&P Indonesia

Operator

PT Medco E&P Indonesia

Type

Oil and Gas Exploration

Status at 0600hrs

Drilling 8 ?" hole at 4845'MD/3806'TVD in Baturaja Lst.

Next Plan

Drill 8 ?" hole to TD, logging, run 7" casing.

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DEVELOPMENT WELLS

Tiaka-6, Senoro Toili PSC JOB, Central Sulawesi, Indonesia

Interest

50% through PT Medco E&P Tomori Sulawesi

Operator

JOB PERTAMINA - Medco E&P Tomori Sulawesi

Type

Oil Development

Status at 0600hrs

R/D and rig released.

Next Plan

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Mamburungan - 2005-2, Tarakan PSC, East Kalimantan, Indonesia

Interest

100% through PT Medco E&P Kalimantan

Operator

PT Medco E&P Kalimantan

Type

Oil Development

Status at 0600hrs

R/D and released rig, moving to S Pamusian 2005-1.

Next Plan

Drilling at S Pamusian 2005-1.

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Kaji Semoga Water Flood 2005-1, Rimau Block PSC, South Sumatra, Indonesia

Interest

95% through PT Medco E&P Indonesia

Operator

PT Medco E&P Indonesia

Type

Oil Development

Status at 0600hrs

R/D and released rig, moving to Kaji Semoga Water Flood 2005-3.

Next Plan

Completion by the rig service.

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Kaji Semoga Water Flood 2005-3, Rimau Block PSC, South Sumatra, Indonesia

Interest

95% through PT Medco E&P Indonesia

Operator

PT Medco E&P Indonesia

Type

Oil Development

Status at 0600hrs

Drilling at 671'MD/549'TVD

Next Plan

Drill ahead to TD, logging.

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Matra D-4, Rimau Block PSC, South Sumatra, Indonesia

Interest

95% through PT Medco E&P Indonesia

Operator

PT Medco E&P Indonesia

Type

Oil Development

Status at 0600hrs

Run production casing, R/D and released rig, moving to KS 2005-25 (KS-208).

Next Plan

Completion by the rig service.

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SEISMIC SURVEY

Tarakan 2D/3D, Tarakan TAC, East Kalimantan, Indonesia

Interest

100% through PT Medco E&P Tarakan

Operator

PT Medco E&P Tarakan

Type

2D/3D Seismic Survey

Activities

3D Survey: Completed
2D Survey: Topographic: completed (100%)
Shothole Drilling completed 1253 Shotpoint (100%)
Recording: 923 (72.9%)

Next Plan

Continue with Recording (2D survey area).

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