^^ In response to a lot of comments above, I suppose no one here knows that Pakistan recently pulled off a coup and had its territorial waters extended drastically. Not only will it be super expensive to build this undersea pipeline, not only will it be prone to sabotage, failure and BP-like disasters, it will also be far longer than any of you guesstimate based on the news below:
Pakistan
201,520 km2 [26]
On 7 May 2009, Pakistan’s continental shelf, or sea-water limits, was extended from 200 to 350 nautical miles. After four years of surveys, the United Nations accepted Pakistan’s claim for extension of the continental shelf. Pakistan would have legal control over another 50,000 square-kilometres into the Arabian Sea. This would enable and would provide a reliable and firm database and foundation, essential for future marine research and exploration of living and non-living marine resources. It will also provide a good basis for Pakistani scientists and technicians to further promote and develop the marine geological and geophysical research and survey capabilities. It will also contribute directly to the petroleum and mineral sector in general and to the offshore maritime industry. Militarily, the Pakistan Navy also gained massive strategic depth as a result of the extension.[27]
DAWN.COM | Pakistan | Pakistan?s sea limits set to be extended
Pakistan ,got its Exclusive Economic Zone extended and not its Territorial water !!
Territorial waters are Waters under the sovereign jurisdiction of a nation or state, including both marginal sea and inland waters. The concept originated in the 17th-century controversy over the status of the sea. Though the doctrine that the sea must be free to all was upheld, a nation's jurisdiction over its coastal waters was also recognized. Nations subscribing to the Law of the Sea observe a territorial limit of 12 nautical mi (22 km) from shore. Territorial rights include the airspace above those waters and the seabed below them.
Where as
The exclusive economic zone is an area beyond and adjacent to the territorial sea, subject to the specific legal regime established in this Part, under which the rights and jurisdiction of the coastal State and the rights and freedoms of other States are governed by the relevant provisions of this Convention.
Article56
Rights, jurisdiction and duties of the coastal State in the exclusive economic zone
1. In the exclusive economic zone, the coastal State has:
(a) sovereign rights for the purpose of exploring and exploiting, conserving and managing the natural resources, whether living or non-living, of the waters superjacent to the seabed and of the seabed and its subsoil, and with regard to other activities for the economic exploitation and exploration of the zone, such as the production of energy from the water, currents and winds;
(b) jurisdiction as provided for in the relevant provisions of this Convention with regard to:
(i) the establishment and use of artificial islands, installations and structures;
(ii) marine scientific research;
(iii) the protection and preservation of the marine environment;
(c) other rights and duties provided for in this Convention.
2. In exercising its rights and performing its duties under this Convention in the exclusive economic zone, the coastal State shall have due regard to the rights and duties of other States and shall act in a manner compatible with the provisions of this Convention.
3. The rights set out in this article with respect to the seabed and subsoil shall be exercised in accordance with Part VI.
Article 58, Para 1 of UNCLOS:
In the exclusive economic zone, all States, whether coastal or land-locked, enjoy, subject to the relevant provisions of this Convention, the freedoms referred to in article 87 of navigation and overflight and of the laying of submarine cables and pipelines, and other internationally lawful uses of the sea related to these freedoms, such as those associated with the operation of ships, aircraft and submarine cables and pipelines, and compatible with the other provisions of this Convention.
In layman's terms EEZ are essentially International Waters, with a adjoining state having exclusive right for Oil and Gas exploration and Fishries.