Despite historically low levels of natural gas prices, Chesapeake Energy?s operating cash flow has remained positive.

FORBES: Rising Chesapeake Energy Production Costs Could Cap Icahn's Upside

They also tried to find workers capable of reversing the plant's emergency shutdown and restarting the flow of gas, but showed little understanding of how the energy facility functioned, three plant employees who survived the attack said.

WSJ: Algeria Probes Possible Role of Local Workers in Attacks

Canadian's oil and gas trusts typically pay out most of their cash flow (net income plus noncash charges like depletion) to unit holders.

FORBES: Out of Energy

Third, and most important, Timor-Leste's oil-and-gas income is relatively modest, and started to flow only after independence.

ECONOMIST: Banyan

McMoRan's early successful wells did not produce as much gas as expected to generate sufficient cash flow to keep the drilling program moving along, so management needed to try something different.

FORBES: Magazine Article