BP (NYSE:BP) today stands for Be Proud -- proud of a "giant" new discovery in the deepwater Gulf of Mexico.

The supermajor's Tiber Prospect was drilled in Keathley Canyon, a section of the offshore frontier that's been firing imaginations since BP, along with Anadarko Petroleum (NYSE:APC) and Devon Energy (NYSE:DVN), made the Kaskida discovery there in 2006. The Tiber discovery follows Chevron's (NYSE:CVX) success earlier this year with its Buckskin prospect, also in Keathley Canyon.

The buzz from BP, which didn't release any figures other than the well's water depth and total drilling depth (4,132 feet and 35,055 feet, respectively), is that Tiber is bigger and better than Kaskida. The latter is estimated to contain at least 3 billion barrels of oil in place, with perhaps 500 million barrels recoverable. That's got analysts at UBS thinking that Tiber recoveries will fall in the range of 500 million to 1 billion barrels.

That sounds like a serious haul, but we have to remember what a behemoth BP is. Even if the company's 62% stake (minority partners are Petrobras (NYSE:PBR) at 20% and ConocoPhillips (NYSE:COP) at 18%) is worth $1.9 billion, as ballparked by Goldman Sachs (NYSE:GS), that barely moves the needle for the $164 billion company. My Foolish colleague David Lee Smith was absolutely correct in his assessment that BP is becoming a shining star in the deepwater. However, there are companies out there with more discovery upside.

While they won't see a dime from Tiber, the companies that may have the most to celebrate today are Anadarko and Devon. Both independents, of much more modest stature than BP, have plenty more prospects in the Keathley Canyon area. Devon, in particular, should be pleased as punch, because it's currently seeking a partner to help shoulder the cost of its pricey deepwater program. The Tiber discovery ought to send more suitors to its door.

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Fool contributor Toby Shute doesn't have a position in any company mentioned. Check out his CAPS profile or follow his articles using Twitter or RSS. The Motley Fool has a disclosure policy.