Guam tar price - OSRS Grand Exchange

A thick, foul-smelling, tar-like substance with a green tinge. The current Old School RuneScape Grand Exchange price of Guam tar is approximately 10 gp (buy 11 gp, sell 9 gp).

• Buy (insta-buy) price: 11 gp
• Sell (insta-sell) price: 9 gp
• Buy limit (4 hours): 7,000
• High alchemy value: 1 gp
• Members item: Yes

Guam tar price trend, last 30 days

Over the last 30 days, Guam tar has traded between 7 gp and 19 gp. The price is up 9.1% across that window, moving from about 11 gp to 12 gp, and up 50.0% over the last 7 days. The sharpest single-day move in that stretch was +71.4% on September 30, 2026.

About 2,526,601 units changed hands across those 30 trading days, an average of 84,220 per day, so Guam tar is currently very liquid: offers usually fill within minutes to a quarter hour.

For flippers, the current spread is 2 gp before tax and about 2 gp per item after the 2% GE tax; a full buy-limit cycle of 7,000 ties up about 63,000 gp and can return up to 14,000 gp. Step-by-step numbers are on the how to flip Guam tar page.

View the live Guam tar price chart, daily volume and full history on GrandExchange.com.