(1)In this Chapter—
“the 1975 Act” means the [1975 c. 22.] Oil Taxation Act 1975;
“oil” means any substance won or capable of being won under the authority of a licence granted under either the [1934 c. 36.] Petroleum (Production) Act 1934 or the [1964 c. 28 (N.I.).] Petroleum (Production) Act (Northern Ireland) 1964, other than methane gas won in the course of operations for making and keeping mines safe;
“oil extraction activities” means any activities of a person—
in searching for oil in the United Kingdom or a designated area or causing such searching to be carried out for him; or
in extracting or causing to be extracted for him oil at any place in the United Kingdom or a designated area under rights authorising the extraction and held by him or, if the person in question is a company, by the company or a company associated with it; or
in transporting or causing to be transported for him as far as dry land in the United Kingdom oil extracted at any such place not on dry land under rights authorising the extraction and so held; or
in effecting or causing to be effected for him the initial treatment or initial storage of oil won from any oil field under rights authorising its extraction and so held;
“oil field” has the same meaning as in Part I of the 1975 Act;
“oil rights” means rights to oil to be extracted at any place in the United Kingdom or a designated area, or to interests in or to the benefit of such oil;
“participator” has the same meaning as in Part I of the 1975 Act; and
“ring fence income” means income arising from oil extraction activities or oil rights; and
“ring fence profits” has the same meaning as in section 79(5) of the [1984 c. 43.] Finance Act 1984 or, in any case where that subsection does not apply, means ring fence income.
(2)For the purposes of subsection (1) above—
(a)“designated area” means an area designated by Order in Council under section 1(7) of the [1964 c. 29.] Continental Shelf Act 1964;
(b)“initial treatment” has the same meaning as in Part I of the 1975 Act; and
(c)the definition of “initial storage” in section 12(1) of the 1975 Act shall apply but, in its application for those purposes in relation to the person mentioned in subsection (1)(d) above and to oil won from any one oil field shall have effect as if the reference to the maximum daily production rate of oil for the field as there mentioned were a reference to that person’s share of that maximum daily production rate, that is to say, a share thereof proportionate to his share of the oil won from that field.
(3)For the purposes of this Chapter two companies are associated with one another if—
(a)one is a 51 per cent. subsidiary of the other;
(b)each is a 51 per cent. subsidiary of a third company; or
(c)one is owned by a consortium of which the other is a member.
Section 413(6) shall apply for the purposes of paragraph (c) above.
(4)Without prejudice to subsection (3) above, for the purposes of this Chapter, two companies are also associated with one another if one has control of the other or both are under the control of the same person or persons; and in this subsection “control” shall be construed in accordance with section 416.