English composer Rutland Boughton composed two concertos for oboe and string orchestra. No. 1 in c - recorded by Hyperion, and no. 2 in g. Both concertos were composed in 1936, the reason seems to be that Boughton's daughter Joy was a talented oboist.
The same composer also composed two Oboe Quartets, in 1930 & 1945.
Morten
If we're going to start going into chamber music

(as of the post before this one if not earlier!) the repertoire of oboe sonatas is worth thinking about. The work I have heard most often, I think, is Rubbra's. Several-times recorded, brief, and I think lovely. I have two recordings - on Dutton and on Etcetera (tape, not the whole CD...)
(There's one by Herbert Howells I'm not sure if I've heard. I _have_ heard one or both of the two by Julius Rontgen- Concertzender.nl Hilversum broadcast a wide range of his works, still available over webcast I think, including those two sonatas - which sound quite good!)
I think I heard Hindemith's oboe sonata back when I was working (food service...) one summer at Interlochen, and probably since. Typical and good piece, if as I do you like his music... one of his concertos includes a solo part for oboe.
(Vagn Holmboe's fine oboe concerto op.37 is more neo-Classical - not surprising I guess given the year - but also very lyrical, in my opinion. It's part of a series he once called Chamber Concertos, since the accompaniment is for chamber orchestra; he later dropped the title.
Worth hearing. I only know the DaCapo recording- there may be one on BIS by now, or perhaps will be in the future.)
Eric