Supplementary agreement to the Drilling Contract for “HAKURYU-11” (Thailand)

Japan Drilling Co., Ltd. (JDC) is pleased to announce that JDC has entered into a supplementary agreement to the drilling contract with Medco Energi Thailand (Bualuang) Limited for the provision of a jack-up drilling rig “HAKURYU-11” with the following terms:

Amended Duration	4 infill wells + 2 optional workover wells
Estimated Commencement Time	Around 4th quarter of 2023
Operating Area	Bualuang field, offshore Thailand