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Oil Authority›Glossary›P›PI

PI

Abbreviation for productivity index.

In the News

WCS Discount Hits $26.40 to WTI as Full Pipelines and Record Tanker Costs Trap Canadian Heavy Crude

Prices & MarketsOct 22, 2026

Brent Hits $112.29 After Houthi Drone Strike at Shaybah as 1 Million Bpd Field and 7 Million Bpd Bypass Pipeline Face Risk

Prices & MarketsOct 22, 2026

Brent Settles at $109.55 as WTI Jumps to $103.66, Squeezing the Spread to $5.89 Ahead of Contract Expiry

Prices & MarketsOct 19, 2026
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PAO (polyalphaolefin) in drilling fluid engineering is a synthet

PARCOM

What Is PARCOM? <p class="definitio

PDC bit

What Is a PDC Bit? <p

PEF

What

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