LONDON -- Fear about the impact of higher energy costs weighs on the overall market, but it has certainly put a tiger in the tank of the FTSE 100's two heavyweight oil stocks BP ( BPA) and Shell (SC) - Get Report.

BP, the index's second most heavily weighted stock, was up 16p to 656 ($9.18), while Shell spurted 11p higher to 606.

The strength in the oils went a long way to countering the overall weakness evident early in the market. The FTSE 100 has moved nicely off its lows and it now looks as if it will not test the 6400-point level in the short term. By midmorning, the index was up 7 points at 6424.

Investors are keeping a close eye on what is going on in Asia. The fragile confidence in the region took another battering this morning on news that


(F) - Get Report

has pulled out of plans to take over struggling Korean car manufacturer


. This has had a direct impact on



, which fell 26p to 972. Elsewhere among the banks,


(BCS) - Get Report

was down 36p to


British Telecom

( BTY) had a bit of a roller-coaster session, but the market seems to have decided it likes the news of closer ties with


(T) - Get Report

and a possible merger of its business services operations. The shares were up 15p at 810.


(VOD) - Get Report

was lifted off its session low of 264p after

Credit Suisse First Boston

reinitiated coverage in the company with a buy recommendation. The broker has set a price target of 350p. Vodafone was off 2.75p at 267.25.


Techmark 100

was struggling this morning, down 40 points to 3843. Big name tech company

Baltimore Technologies

was down 5.25% to 703p,

ARM Holdings

( ARMHY) was down 21p to 725, and

Bookham Technology

( BKHM) fell 105p to

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34.45 -- its secondary offering of 18.5 million shares, due later this week, is weighing on the stock.

Europe's Continental bourses were starting off the week in negative territory, as the


in Paris was down 96.3 at 6518.4 and the

Xetra Dax

in Frankfurt was off 67.7 at 6931.9. The Neuer Markt's tech-heavy

Nemax 50

index was 47.1 lower at 6931.9.

Many technology shares were lower following the

Nasdaq Composite Index's

poor finish on Friday.


was down 4.20 euros at 175.70 ($149.79),


(ENT) - Get Report

fell 1.48 euros to 46.73 and


(SAP) - Get Report

was 3.00 euros lower at 267.00.

Telecoms were mixed, with

Deutsche Telekom

( DT) up 0.02 euros at 43.26,


(TEF) - Get Report

down 0.53 euros at 24.02 and

France Telecom


off 2.30 euros at 123.80.

Telco equipment maker


( ALA) dropped 3.40 euros to 87.90.


Dresdner Bank

fell 1.29 euros to 46.60, after announcing it would acquire investment bank

Wasserstein Perella

for $1.4 billion in stock.