BP p.l.c. 6K Appraisal Well Confirms Kaskida Field Extension

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16 of
the Securities Exchange Act of 1934

          for the period ended 16 November 2009

           BP p.l.c.
                 (Translation of registrant's name into English)

                 1 ST JAMES'S SQUARE, LONDON, SW1Y 4PD, ENGLAND
                    (Address of principal executive offices)

     Indicate by check mark whether the registrant files or will file annual
     reports under cover Form 20-F or Form 40-F.

Form 20-F        |X|          Form 40-F
                         ---------------               ----------------

     Indicate by check mark whether the registrant by furnishing the information
     contained in this Form is also thereby furnishing the information to the
     Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of
     1934.

Yes                            No        |X|
                         ---------------               ----------------

press release

November 16, 2009

APPRAISAL WELL CONFIRMS WESTERN EXTENSION OF

THE

KASKIDA FIELD IN THE

GULF OF MEXICO

today

confirmed that an appraisal well to test a western extension of the Kaskida field has confirmed oi

l in Lower Tertiary reservoirs five

miles to the west of the

Kaskida

discovery well. The well, drilled to a total depth of 32,500 feet, is located in

Keathley Canyon block 291

in 5,675 feet of water and

250 miles southwest of

New Orleans

Appraisal activities will continue with a WATS

(wide azimuth towed streamer)

seismic acquisition survey in early 2010 and a well test in 2011.

This well builds on the success of our recent Tiber discovery to further strengthen BP's leading position in the emerging Lower Tertiary play in the US Gulf of Mexico

" said Andy Inglis, chief executive, Exploration and Production, "and

supports the continuing growth of our deepwater Gulf of Mexico business into the second half of the next decade."

Kaskida is operated by BP, with a 70 per cent working interest

with co-owner Devon

(30 per cent)

Further information

David Nicholas, BP press o

ffice

London

+44

(0)20 7496 4708

Daren Beaudo, BP

press office,

Houston

281

366

8346

- ENDS -

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

BP p.l.c.
(Registrant)

Dated: 16 November 2009

/s/ D. J. PEARL
..............................
D. J. PEARL
Deputy Company Secretary

BP p.l.c. (BP) 6-KAppraisal Well Confirms Kaskida Field Extension