"undeveloped reserves" is a correct and usable phrase in written English.
It typically refers to natural resources, such as minerals, oils, and gas, that have not yet been extracted from the ground or otherwise collected and used. For example, "The country had large undeveloped reserves of iron ore that could be mined."
The Cutbank Ridge is one of Encana's most prominent shale gas assets, with undeveloped reserves of about 900 billion cubic feet of natural gas equivalent.
Iraq has total oil reserves of 115bn barrels, placing it near the top of the global list of known verifiable undeveloped reserves.
"By far the largest share of undeveloped reserves remain under state control, and in large part open only to national oil companies.
Ownership of Cyprus's promising though undeveloped reserves, lying beside similarly large deposits found recently off the coast of Israel, would prevent potential competitors from obtaining them and ensure a supply of gas — and Gazprom's continued power — for generations to come.
Among 19 of the largest shale companies reviewed by The New York Times, at least seven increased — some by more than 200 percent — the amount of undeveloped reserves they reported in their federal filings immediately after the rule took effect, according to their S.E.C. filings.
Hackett insists Anadarko plans to develop 90% of its proven undeveloped reserves within two years.
The firm now thinks there are 2.8 billion tonnes, making it the seventh-largest undeveloped reserve in the world.Alas for Churchill, other people quickly grew interested.
BP is also the largest shareholder and operator of the Azeri-Chirag-Guneshi field, Azerbaijan's largest producing oilfield in the Caspian reserve, where vast undeveloped gas reserves also lie.
As for Enerplus, it may never reach a 14% yield, simply because the trust is so deep in proven reserve life (about 10 years) and in undeveloped potential reserves, including oils sands, which carry a stock-market-type premium these days.
The leak happened at the Azeri-Chirag-Guneshi (ACG) field, Azerbaijan's largest producing oil field in the Caspian where vast undeveloped gas reserves also lie.
Thomas Martin at Collins Stewart said: We estimate the deal valuation at around $17 a barrel after adjusting for cash and tax shields and view this as a full valuation for undeveloped North Sea reserves.
