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ANNUAL REPORT 2005 - Lukoil

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<strong>ANNUAL</strong> <strong>REPORT</strong>, <strong>2005</strong><br />

GEOLOGICAL EXPLORATION, OIL & GAS RESERVES<br />

Geological Exploration<br />

The main task of LUKOIL's geological exploration work is to replace production with new commercial<br />

reserves and to rapidly prepare resources in promising regions for exploitation. The Company places<br />

special emphasis on use of the latest technologies in its geological exploration work, enabling considerable<br />

efficiency improvements.<br />

Exploration Drilling,<br />

thousand meters<br />

2D Seismic Survey, km<br />

3D Seismic Survey, km 2<br />

200<br />

20,000<br />

6,000<br />

5,686<br />

150<br />

146<br />

118<br />

131<br />

15,000<br />

14,597<br />

4,000<br />

100<br />

10,000<br />

9,752<br />

9,787<br />

2,429<br />

2,153<br />

2,000<br />

50<br />

5,000<br />

0<br />

2003<br />

2004<br />

<strong>2005</strong><br />

0<br />

2003<br />

2004<br />

<strong>2005</strong><br />

0<br />

2003<br />

2004<br />

<strong>2005</strong><br />

Most of the Company's exploration drilling in <strong>2005</strong> was concentrated in the Timan-Pechora oil & gas<br />

province, Western Siberia and the Caspian Sea. Total exploration drilling in <strong>2005</strong> was 131,000 meters.<br />

The Company is continuously increasing volumes of 2D and 3D seismic surveying in order to discover<br />

and reveal details of new structures, and to prepare drilling of prospecting and exploration wells at<br />

promising sites. The quality of seismic work and the speed of data processing and interpretation have<br />

improved in recent years mainly thanks to use of new information technologies. In <strong>2005</strong> LUKOIL carried<br />

out 9,787 km of 2D seismic and 5,686 km 2 of 3D seismic. Vertical seismic profiling was carried<br />

out at 40 wells.<br />

Geoelectrics, km<br />

3,000<br />

2,488<br />

2,381<br />

Exploration Costs, $ million<br />

500<br />

426<br />

400<br />

Hydrocarbon Reserves<br />

Extensions and Discoveries,<br />

International Classification,<br />

million boe<br />

800<br />

640<br />

676<br />

2,000<br />

300<br />

259<br />

309<br />

600<br />

430<br />

1,000<br />

1,033<br />

200<br />

400<br />

100<br />

200<br />

0<br />

2003<br />

2004<br />

<strong>2005</strong><br />

0<br />

2003<br />

2004<br />

<strong>2005</strong><br />

0<br />

2003<br />

2004<br />

<strong>2005</strong><br />

20

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