Holding(s) in Company

Sterling Energy PLC 25 June 2007 Form TR-1 with annex. FSA Version 2.1 updated April 2007 +----------------------------------------+ |For filings with the FSA include the | |annex | | | |For filings with issuer exclude the | |annex | +----------------------------------------+ +-----------------------------------------------------------------------------+ |TR-1: Notifications of Major Interests in Shares | +-----------------------------------------------------------------------------+ +-----------------------------------------------+-------------------------------+ | |Sterling Energy plc | | | | |1. Identity of the issuer or the underlying | | |issuer of existing shares to which voting | | |rights are attached: | | +-----------------------------------------------+-------------------------------+ | | | | |2. Reason for notification (yes/no) | +--------------------------------------------------------------------+----------+ | |Yes | | | | |An acquisition or disposal of voting rights | | +--------------------------------------------------------------------+----------+ | | | | | | |An acquisition or disposal of financial instruments which may result| | |in the acquisition of shares already issued to which voting rights | | |are attached | | +--------------------------------------------------------------------+----------+ | | | | | | |An event changing the breakdown of voting rights | | +--------------------------------------------------------------------+----------+ | | | | | | |Other (please specify):______________ | | +---------------------------------------+----------------------------+----------+ | |Slater Investments | | | | |3. Full name of person(s) subject to | | |notification obligation: | | +---------------------------------------+---------------------------------------+ | |N/A | | | | |4. Full name of shareholder(s) (if | | |different from 3): | | +---------------------------------------+---------------------------------------+ | |21 June 2007 | | | | |5. Date of transaction (and date on | | |which the threshold is crossed or | | |reached if different): | | +---------------------------------------+---------------------------------------+ | |22 June 2007 | | | | |6. Date on which issuer notified: | | +---------------------------------------+---------------------------------------+ | |3% | | | | |7. Threshold(s) that is/are crossed or | | |reached: | | +---------------------------------------+-------+--------------------+----------+ |8: Notified Details | +------------------------------------------------------------------------------------------+ |A: Voting rights attached to shares | | | | | +-------------+---------------------+------------------------------------------------------+ |Class/type of|Situation previous to|Resulting situation after the triggering transaction | |shares |the triggering | | | |transaction | | |If possible +----------+----------+----------+----------------------+--------------------+ |use ISIN code|Number of |Number of |Number of |Number of voting |Percentage of voting| | |shares |voting |shares |rights |rights | | | |rights | +-----------+----------+----------+---------+ | | | | | | | | | | | | | | | | | | | | | | |Direct |Indirect |Direct |Indirect | +------------++---------++---------++---------++---------+-+---------++---------++---------+ |GB0005299929|N/A |N/A |N/A |N/A |56,900,000 |N/A |3.63% | +------------++---------++---------++---------++---------+-+---------++---------++---------+ +--------------------------------------------------------------------------------+ |B: Financial Instruments | | | | | +--------------------------------------------------------------------------------+ |Resulting situation after the triggering transaction | | | | | +---------------+---------------+---------------+----------------+---------------+ |Type of |Expiration date|Exercise/ |No. of voting |Percentage of | |financial | |conversion |rights that may |voting rights | |instrument | |period/date |be acquired (if | | | | | |the instrument | | | | | |exercised/ | | | | | |converted) | | +---------------+---------------+---------------+----------------+---------------+ | | | | | | | | | | | | | | | | | | +---------------+---------------+---------------+----------------+---------------+ +-----------------------------------------------------------------------------+ |Total (A+B) | | | | | +--------------------------------------+--------------------------------------+ |Number of voting rights |Percentage of voting rights | +--------------------------------------+--------------------------------------+ |56,900,000 |3.63% | +--------------------------------------+--------------------------------------+ +-----------------------------------------------------------------------------+ |9. Chain of controlled undertakings through which the voting rights and /or | |the financial instruments are effectively held, if applicable: | +-----------------------------------------------------------------------------+ |N/A | +-----------------------------------------------------------------------------+ +-----------------------------------------------------------------------------+ |Proxy Voting: | | | | | +--------------------------------------+--------------------------------------+ |10. Name of proxy holder: | | | | | | | | +--------------------------------------+--------------------------------------+ |11. Number of voting rights proxy | | |holder will cease to hold: | | | | | | | | +--------------------------------------+--------------------------------------+ |12. Date on which proxy holder will | | |cease to hold voting rights: | | | | | | | | +--------------------------------------+--------------------------------------+ |13. Additional information: | | | | | | | | +--------------------------------------+--------------------------------------+ |14 Contact name: |Ralph Baber | | | | | | | +--------------------------------------+--------------------------------------+ |15. Contact telephone name: |020 7929 2988 | | | | | | | +--------------------------------------+--------------------------------------+ For notes on how to complete form TR-1 please see the FSA website. This information is provided by RNS The company news service from the London Stock Exchange

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