Medco?s weekly drilling & exploration activities

Tuesday, October 11 2005 - 02:23 AM WIB

PT MEDCO ENERGI INTERNASIONAL TBK & SUBSIDIARIES
WEEKLY DRILLING & EXPLORATION ACTIVITIES
Week ending October 7, 2005

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EXPLORATION / APPRAISAL WELLS

Carat-1, Brantas PSC, East Java, Indonesia

Interest

32% through Novus Indonesia Brantas Company

Operator

Lapindo Brantas

Type

Oil and Gas Development

Status at 0600hrs

Killed F- 10 zone, retrieved completion string, prepare to set cement plug.

Next Plan

Set cement plug.

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Sukowati -4, Tuban PSC JOB, East Java, Indonesia

Interest

25% through PT Medco E&P Tuban

Operator

PetroChina International

Type

Oil and Gas Development

Status at O600hrs

Prepare to acidized. Found tubing or packer leak

Next Plan

Acidizing and production testing

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

Interest

100% through PT Medco E&P Indonesia

Operator

PT Medco E&P Indonesia

Type

Delineation

Status at 0600hrs

Waiting for Service Rig

Next Plan

Completion job with service rig

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DEVELOPMENT WELLS

Tiaka-7, 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

Preparing to run DST

Next Plan

Run DST

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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

Setting Top Drive Tool

Next Plan

Drilling 6?" hole. Planned TD 9088?

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Kaji Semoga 2005-31, 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

Set 7? casing at 3141?. Completed cementing

Next Plan

N/U X-mast tree

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Kaji Semoga 2005-35, Rlmau 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

Continued wiper trip, logging job FMT tools, RIH RB 8 ?? to cleaned hole

Next Plan

Run casing and testing

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Matra C-6, 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

Completed drilling 12 ?? hole to 3260?

Next Plan

Run 9 5/8? casing and continue drilling. Planned TD 5120?

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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: Line preparation activities (i.e. line clearance, topographic measurement, shothole drilling and recording) have been conducted; The progress of the survey is as follow:
Line Clearance: 334.78 km
Topographic measurement: 359.45 km
Shothole Drilling: 3,439 Shotpoint.
Recording: 971 Shotpoint

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2D Survey: Line preparation activities (i.e. line clearance, topographic measurement) have been conducted; The progress of the survey is as follow:
Line Clearance: 35.95 km
Topographic measurement: 45.8 km

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Note: In last week report, 3D and 2D progress is united.

Next Plan

Continue with line preparation (2D survey area); drilling shothole and recording data (3D survey).

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