05.07.2009

Part of the gas-entry-exit model in a transmission agreement whereas shippers have to contract and nominate transport capacity to ensure that the volume of gas injected into the system is equal to the volume extracted from it. Many transmission systems require the shipper to make up to hourly nomination with penalties for hourly imbalances

Geothermal hotspots are volcanic features which are found all around the world. Basically a hotspot is an area of reduced thickness in the mantle which transmits excess internal heat from the interior of the earth to the outer crust. These hotspots are well known for their unique effects on the surface, such as the volcanic islands of Hawaii, the mineral deposits and geysers in Yellowstone National Park, or the hotsprings in Iceland. These geothermal hotspots can easily be used to generate electricity.

A hot oil unit is designed to circulate heated fluid into piping, tubing, casing, or tanks for a variety of reasons, including the removal of paraffin and tar-based oils

Takeover attempt by one company of another that is strongly resisted by the target firm, such as when BG tried to take over the Australian company Origin Energy in mid 2008 in a hostile take-over and which was eventually foiled

The government of the foreign country in which the crude oil or natural gas is produced.

A relatively high-standing area formed by the movement of normal faults that dip away from each other. Horsts occur between low-standing fault blocks called graben

The Strait of Hormuz is a narrow (34 km at its narrowest width) strategically important waterway between the Gulf of Oman in the southeast and the Persian Gulf in the southwest, Iran on the north coast and the United Arab Emirates on the south coast. Between 20-40% of the world’s oil supply passes through the Strait. Iran has threatened that if its nuclear power infrastructure is bombed it will close down the strait

A company that manages production establishments located in different countries to produce the same or similar products

A horizontal merger is when two companies competing in the same market merge or join together. This type of merger can either have a very large effect or little to no effect on the market