YEAR                                                    EVENTS
1986 - The Company was Incorporated on 25th September, and the 
       Certificate of Commencement of business was obtained on 27th 
       February, 1987.

- The Company's object is providing and operating ships, vessels, rigs, structures, equipment and personnel required for on-shore and off-shore drilling, oil field services, etc.

- The Company concluded a collaboration agreement with M/s. India Offshore Inc., USA for both technical know-how and equity participation.

1987 - The imported rigs named as Aban-I and Aban-II were employed at Godavari basin and Mumbai High respectively. The rigs struck oil at few places in both the fields. The company trained all categories of its national crew on a continuous basis which brought down the expatriate manpower cost by about 50%.

1988 - The Company received a letter of intent from ONGC for charter hire of a drillship (Five Star) for two years with an option to extend the contract for a further period of two years. Necessary steps were being taken to obtain approvals from the Government for the said drillship.

- 9,38,491 shares subscribed for by promoters, directors, etc. 28,61,509 No. of equity shares then issued at par of which the following shares were reserved and allotted:

- (i) 2,12,909 shares to promoters, directors etc.

- (ii) 15,20,000 shares to India Offshore Inc. U.S.A. Shares reserved for preferential allotment were:

- (i) 1,70,000 shares to NRI on repatriation basis (all were taken up);

- (ii) 1,90,000 shares to employees etc. (only 18,900 shares taken up). The remaining 7,68,600 shares along with the unsubscribed portion of 1,71,100 shares from employees quota, were offered to the public in May. Additional 1,69,200 shares allotted to retain over-subscription (1,43,700 shares to the public and 25,500 shares to NRIs).

1989 - The Company bagged a manning and management contract against a global tender from ONGC to man and manage 300 feet cantilever jack-up-rig `Sagar Uday' in Mumbai High.

- Due to non receipt of permission from the Government for acquisition of the drillship, the letter of intent was not renewed.

1990 - The Company continues to bid for more onshore/offshore contracts in order to expand its operations and also to diversify into oil related areas.

1991 - The Company received letter of intent from ONGC for charter hire contracts of the two rigs, Aban I and Aban II for primary period of 2 years, and extendable for a further period of 2 years under mutually agreed terms.

1992 - The Company entered into a fresh charter hire contracts with ONGC for ABAN-I and ABAN-II for a primary period of 2 years with effect from 1st June and 25th April respectively with a provision for extension for further periods.

- The Rig Lead Ansterdam was added to the fleet during March.

- The Company signed a Memorandum of Agreement for acquiring two more 300 ft. jack-up rigs viz. `Chicken Itza' and `Uxmal' from the present owners represented by ECGD, a Government of UK organization.

- During November, the Company offered 19,84,600 No. of equity shares of Rs.10 each at a prem. of Rs.60 per share on rights basis in the prop. 1:2 (all were taken up). Additional 2,91,790 shares were allotted to retain oversubscription.

- Another 99,230 shares of Rs.10 each at a prem. of Rs.60 per share were offered to the employees of the Company on an equitable basis. (Only 32,270 shares taken up) Unsubscribed portion was allowed to lapse.

- 23,08,660 rights equity shares issued.

1993 - Rigs Aban-I, Aban-II and I'le D Amsterdam continued to be on charter hire contracts with ONGC. The Company disposed two rigs viz., Chichen Itza and Uxmal.

- The Company undertook refining for production of petroleum products. With this in view, it proposed to set up a refinery with a capacity of 3 million TPA at Tuticorin. A modern refinery was located at Calgary, Canada which was to be purchased from Shell Canada.

1994 - The Company undertook to set up a 3 million TPA capacity petroleum refinery.

- The Company diversified its activities to include harnessing of wind energy. The Company entered into a tie-up with Kenetech Windpower Inc. USA.

- It has also set up 2 MW wind power plant in Muppandal and Kayathar in Tamil Nadu.

- 200 No. of equity shares kept in abeyance of rights issue of Jan. 1992 was issued.

1995 - The setting up of a 3 million TPA capacity petroleum refinery was kept in abeyance due to the severe liquidity crunch.

- The growth and performance of the wind energy division did not show the expected increase due to severe liquidity crunch in financial and corporate sector.

- The Company has commissioned 62 wind turbines during the year.

- Another 700 shares issued.

1996 - Company has received a new charter hire contract for ABAN-I from ONGC for deployment in the West Coast of India for a period of 3 years. ABAN-II continues to perform satisfactorily while 11c D'Amsterdam the company has received letter of intent from ONGC at substantially increased charter hire rates.

- Company is working as a proposal for setting up a 3 million tonne Refinery and Power Plant have been re-assessed by the Company.

1997 - The Company has entered into new contract for Rig I'le D' Amsterdam with increased rates for a period of two years.

- The Company was selected by Tamil Nadu Government for setting up a 103 MW power plant on Build, Own and Operate basis near Ennore. The Company, assigned this project to M/s. Aban Power Company Ltd. a company separately formed for power generation.

2001 - Aban Loyd Chiles Offshore Ltd. has entered into a definitive agreement with Tata Industries Ltd. to acquire 22.5 per cent controlling stake in Hitech Drilling Services India Ltd.

2002

-Mr A Abraham steps down from the Chairmanship of the company.

-High court approves for the scheme of amalgamation of Hitech Drilling Services India Ltd with the company.

-Ties up with Qatar Shipping to bid for Shipping Corporation of India's disinvestment programme.

-Qualifies to bid for Shipping Corporation of India Ltd.

-Mr Reiji Abraham and Mr Renny Abraham acquired the shares of the company.

-Opts out of Shipping Corporation of India bid process

2003

-Board proposed to delist the company's shares from the Delhi Stock Exchange.

-Company's offshore has been registered for ISO 9001:2000 by KPMG quality Register.

-Director Mr Renny Abraham expires on Oct 5th.

-Mr Frank A Wojtek resigns as the Director on the board of the company.

-Aban Loyd Chiles Offshore Ltd. has informed that Mr. K. Bharathan has been appointed as Additional Director effective December 26, 2003.

2004

-Aban Loyd Chiles Offshore MD expires

2005

-Aban Loyd signs contract with HOEL

-Aban Loyd Chiles enters agreement with Rowandrill Inc, USA

-Aban Loyd Chiles Offshore enters into MoA with Pride Foramer

-Company has splits its Face value of Shares from Rs 10 to Rs 2

2006

-Aban Loyd to purchase 52% stake in Indonesian co

-Aban Loyd's subsidiary to acquire a Norwegian Company

-Company has changed its name from Aban Loyd Chiles Offshore Ltd. to Aban Offshore Ltd.

2008

-Aban Offshore has signed a Letter of Agreement with Husky Oil China Ltd for the deployment of the jack-up rig Deep Driller 5 offshore China for a 3 firm wells along with 3 optional wells programme.

2009

- Aban Offshore Ltd has informed that Mr. Satish Chandra Gupta has been appointed as Additional Director effective March 26, 2009.

2010

-Semisubmersible Rig Aban Pearl owned by the wholly owned subsidiary has commenced its drilling operations on January 19, 2010.

-Letter of Award has been received from a leading exploration & production Company for the deployment of the jack-up rig Deep Driller 1 offshore India for a firm period of 1 year plus two optional periods of 6 months each.

2011

-Sinvest AS, a subsidiary of offshore drilling contractor Aban Offshore is likely to sign a deal with Norway's Petrolia ASA to sell its entire 50% holding in Venture Drilling AS for about Rs 152 crore.

-Company has received Firm Orders from ONGC for the deployment of jack-up rigs Aban III and Aban IV for a period of 3 years each. The total value of these firm orders is approximately USD 138 million (equivalent to Rs. 620 Crores).

-Aban Offshore has signed an agreement for early redelivery of a drillship to its Russian owner.

2012

-A letter of award has been received for the deployment of the jack-up rig Deep Driller 3 (owned by the Company's step down subsidiary) offshore Malaysia, from Petronas Carigali Sdn. Bhd., for a firm period of three year

-Aban Offhsore is India's largest offshore drilling contractor in the private sector, offering world-class drilling and oil field services for offshore exploration and production of hydrocarbons to the oil industry in India and abroad.

2013 -The Company has received a Letter of Award ("LOA") from ONGC for deployment of drillship Aban Ice for a firm period of 3 years.

2014 - Firm Order from ONGC for the deployment of jack-up rig Aban IV for a period of 3 years -Aban Offshore Ltd has informed that a letter of award has been received for the deployment of the jack-up rig Deep Driller 5 Offshore Vietnam, for a firm period of 1 year and an optional period of 1 year.

2016 -Aban Offshore zooms as arm bags order from ONGC for the deployment of the Drillship Aban Abraham for 2 years.

2017 -Aban Offshore wins Rs 471 cr order from ONGC.

2018 -Aban Offshore Limited has informed the Exchange regarding 'Acquisition of 100% interest in UK Continental Shelf Production License.

2022 -Aban Offshore Limited has informed the Exchange about Awarding orders/contract for Jack-up Rig Aban III