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Country:IndonesiaListing Exchange:Indonesia Stock Exchange (IDX)Stock Code:ELSACore Business:Integrated Upstream Oil & GasServices :

- Geoscience- Drilling- Oilfield

Other Services:Downstream Oil & GasUpstream Oil & Gas SupportCorporate Structure:3 Divisions6 Subsidiaries1 Affiliate

Consolidated Income Statement

Consolidated Balance Sheet

The brand new Well Testing Barge “Elnusa Samudra 6”, was launched for operation in Total

Net sales 1,147,270 1,042,514 -9%Gross Profit 142,622 107,662 -25%Operating Profit 81,941 43,370 -47%EBITDA 152,626 117,737 -23%Net Profit 49,927 19,648 -61%

(in Million Rupiah) Mar-10 Mar-11 Change

Current assets 2,611,578 2,372,231 -9%Fixed assets 1,362,736 1,393,450 2%Other assets 112,635 122,701 9%Total non current assets 1,592,000 1,639,887 3%Total assets 4,203,578 4,012,118 -5%Current liabilities 1,774,469 1,229,494 -31%Non current liabilities 454,622 811,435 78%Interest bearing debt 919,835 1,168,319 27%Total Liabilities 2,229,091 2,040,929 -8%Equity 1,959,263 1,971,189 0.6%Total Liabilities & equity 4,203,578 4,012,118 -5%

(in Million Rupiah) Mar-10 Mar-11 Change

Ownership Composition:PT Pertamina (Persero) 41,10%PT Benakat Petroleum Energy 25,97%Public 31,56%Board of Directors:Elia Massa(President Director)Tony Harisman Soetoro(Director of Operation)Sabam Hutajulu(Director of Finance)Budi Setiawan(Director of Business Development)Helmy Said(Director of Human Resource& General Affairs)Corporate Secretary:Heru SamodraContact Us:Investor Relations Dept.Attn:Head of IR – Fajriyah Usman(fusman @elnusa.co.id)Investor Analyst – Ahmad Zaki(ahmad.zaki@elnusa.co.id)Investor Communications – Cindy(cindy@elnusa.co.id)Ph : (62) (021) 78830850ext 1633 / 1648 / 1646Fax: (62) (021) 78830907Disclaimer Notice:PT Elnusa Tbk makes norepresentations or warrantiesas to the adequacy, completeness,suitability or alike for any purpose ofthe information contained in thisrelease, and disclaim liability for anyerror or omissions therein and forany damages whatsoever orhowsoever arising, including fromany action taken in reliance on anyinformation in this release.

Financial Ratios

Revenue Contribution March 2011 – by Business Segment

Customer Group Segment March 2011

Significant Events

Launching of Contractor Safety Management System (CSMS) to alloperational vendors to improve HSE implementation in the Company(January 1) Launching of the construction completion of Well Testing Barge (ELSA 6)and sent it off for 3 year operation in Total E&P Indonesie (January 19) Fixed Rate Notes (FRN) issuance worth USD50 million intended to find thecapital expenditures and working capital to strengthen operational capacity(January 20)

40%

59%

1% Upstream ServicesDownstream ServicesUpstream SupportingServices

26%

4%

26%

43%

0.2% PertaminaPrivate CompaniesProduction SharingContractRetail/PublicGovernment Institution

Current ratio 1.47 1.93 31%Net Profit to Assets 4.8% 2.0% -59%Net Profit to equity 10.2% 4.0% -61%Liabilities to Asset 0.22 0.29 33%Liabilities to Equity 0.47 0.59 26%Gross Profit Margin 12.4% 10.3% -17%Operating Profit Margin 7.1% 4.2% -42%Net Profit Margin 4.4% 1.9% -57%EBITDA Margin 13.3% 11.3% -15%EPS 6.8 2.7 -61%PER 17.18 27.40 59%

Mar-10 Mar-11 Change