Medco's weekly drilling & exploration activities

PT MEDCO ENERGI INTERNASIONAL TBK & SUBSIDIARIES
WEEKLY DRILLING & EXPLORATION ACTIVITIES
Week ending February 10, 2006

EXPLORATION / APPRAISAL WELLS

Gesang-1
Gesang-1 is located in Merangin Block, Jambi. The operator is PT Medco E&P Merangin. Medco?s shared in this block is 41% through PT Medco E&P Merangin.
The status of the well is continuing shut in. The next plan is waiting on small well service rig to continue testing.

Anyelir-1
Anyelir-1 is located in South Sumatera Extension Block, South Sumatera. The operator is PT Medco E&P Indonesia. Medco?s shared in this block is 100% through PT Medco E&P Indonesia.
The status of the well waiting for service rig to complete the well. The next plan is testing.

Fariz-3
Fariz-3 is located in South Sumatera Extension Block, South Sumatera The operator is PT Medco E&P Indonesia. Medco?s shared in this block is 100% through PT Medco E&P Indonesia.
The status of the well is continuing shut in well for pressure build up, while evaluate drawdown test results. The next plan is terminate test, suspend the well as oil/gas well.

Resik-1
Resik-1 is located in Tuban Block, East Java. The operator is Petrochina International. Medco?s shared in this block is 25% through PT Medco E&P Tuban.
The status of the well is drilling with 8?? bit to TD of 10,145?, condition hole to log. The next plan is completing logging, evaluate logs. 

Senoro-4B
Senoro-4B is located in Tomori Block, Central Sulawesi. The operator is PT Medco E&P Indonesia. Medco?s shared in this block is 50% through PT Medco Tomori Sulawesi.
The status of the welt is performed DST #1 interval 6662-6666? and 6674-6678', flowed 0.63 MMSCFGD+ 491 BWPD (CL-14,000ppm), FTHP 170-180 psi on 32/64 " choke. Set cement plugs, and rig released.

DEVELOPMENT WELLS

South Pamusian 2005-1
South Pamusian 2005-1 is located in Tarakan Block, Tarakan. The operator is PT Medco E&P Indonesia. Medco?s shared in this block is 100% through PT Medco E&P Tarakan.
The status of the well is drilled 6? hole to TD of 2580m, conditioning hole to run wireline logging. The next plan is to run wireline logs, evaluate logs. 

Kaji Semoga (TS) 2006-06
Kaji Semoga (KS TS) 2006-06 is located in Rimau Block, South Sumatera. The operator is PT Medco E&P Indonesia. Medco?s shared in this block is 100% through PT Medco E&P Rimau.
The operation is continue drilling with 8?? bit to TD of 3360'MD/3147TVD, run wireline logs, preliminary log evaluation indicates Tellsa has 52? gross of oil pay and Baturaja Limestone has 37? gross oil pay. The operation then continued with running 7" casing. The operation at report time is cementing 7" casing. The next plan is Nipple up X'mas tree, R/D rig and rig release.  .

Kaji Water Flood (KWF) 2006-08
Kaji Water Flood (KWF) 2006-08 is located in Rimau Block, South Sumatera. The operator is PT Medco E&P Indonesia. Medco?s shared in this block is 95% through PT Medco E&P Rimau.Spudded in well, drilled 17?? hole, set 13 3/8" casing at 220', Drilling 12 1/4" hole to 2673'MD/2675TVD 

The status of the well now is conditioning hole to run 9 5/8" casing. The next plan is to run 9 5/8" casing, drill with 8 ?? bit to core point, cut core in Baturaja Limestone and TAF SS, drilling ahead to TD. 

Kaji Semoga (KS) 2056-27
Kaji Semoga (KS) 2005-27 is located in Rimau Block, South Sumatera. The operator is PT Medco E&P Indonesia. Medco?s shared in this block is 95% through PT Medco E&P Rimau.
Spudded in well, drilled 17 ?? hole and run 13 3/8" hole to 120'. Drill hole to 1070'MD/1031"TVD, run 9 5/8" casing. The status of the well now is drilling with 8?? hole at 1098'MD/1057'TVD. The next plan is to continue drilling 8 ?? hole to TD,run and evaluate wireline logs. (end of release)