English to Spanish Bus/Financial Finance (general) Investments, equity

Sentence: XYZ company recently finalised equity lifting arrangements with the XXX Project joint venture participants to enable equity marketing of uncontracted LNG from the XXX facilities.

LNG stands for "Liquefied Natural Gas" (Gas natural licuado).

We have found this definition for "equity lifting" but still cannot find an equivalent term in Spanish, let alone an explanation as to what it actually means by "lifting". Does it mean "increase"?

"Equity lifting is usually the right to lift LNG or NGL's at a usually fixed price in proportion to the share an equity partner holds in the liquefaction plant."

If it helps in any way, this is "Australian English".
We will greatly appreciate if someone can shed some light on this.
¡Gracias a todos!