The Oilfields Workers' Trade Union (OWTU) is one of the most powerful trade unions in Trinidad and Tobago. Currently led by Ancel Roget, the union was born out of the 1937 labour riots, the union was nominally led by the imprisoned TUB Butler but was actually organised by lawyer Adrian Cola Rienzi.

Trinidad and Tobago, officially the Republic of Trinidad and Tobago, is the southernmost island country in the Caribbean. Consisting of the main islands Trinidad and Tobago and numerous much smaller islands, it is situated 11 kilometres off the coast of northeastern Venezuela and 130 kilometres south of Grenada. It shares maritime boundaries with Barbados to the east, Grenada to the northwest and Venezuela to the south and west. Trinidad and Tobago is generally considered to be part of the West Indies. The island country's capital is Port of Spain, while its largest and most populous municipality is Chaguanas.