Well, I recently Bashed patch a crapload of mods to the best of my abilities (and understandings of BOSS's suggestions..still have no idea what Delev is or why there are so many different Actor things which I can't seem to find in Bash..) and launched Oblivion. Seems to run fine, except when the game loads the Oblivion logo is gone, replaced by a white rectangle (this is before you get to the main menu, on that one loading screen). Keep in mind I'm using a couple things that aren't listed here as they are just textures (such as IFT and DarkUI Darn). There's also a few MMM plugins and the TNR mod that I've merged into the Bashed patch. Here is my load order, and please excuse the fact that I can't figure out how to make the damn code box have a scrollbar:

Oblivion.esmOscuro's_Oblivion_Overhaul.esmMart's Monster Mod.esmMart's Monster Mod for OOO.esmUnofficial Oblivion Patch.espDLCShiveringIsles.espUnofficial Shivering Isles Patch.espEnhanced Economy.espDLCHorseArmor.espDLCHorseArmor - Unofficial Patch.espDLCOrrery.espDLCOrrery - Unofficial Patch.espDLCVileLair.espDLCVileLair - Unofficial Patch.espDLCMehrunesRazor.espDLCMehrunesRazor - Unofficial Patch.espDLCSpellTomes.espDLCThievesDen.espDLCThievesDen - Unofficial Patch.espDLCThievesDen - Unofficial Patch - SSSB.espOscuro's_Oblivion_Overhaul.espMart's Monster Mod for OOO.espMart's Monster Mod - Additional Enemy NPC Vars.espMart's Monster Mod - Gems & Gem Dust.espMart's Monster Mod - Hunting & Crafting.espMart's Monster Mod - Dungeons of MMM.espMart's Monster Mod - More Wilderness Life.espMart's Monster Mod - Extra Wounding.espMart's Monster Mod - Farm Animals.espKragenir's Death Quest.espKDQ - Rural Line Additions.espDLCBattlehornCastle.espDLCBattlehornCastle - Unofficial Patch.espDLCFrostcrag.espDLCFrostcrag - Unofficial Patch.espKnights.espKnights - Unofficial Patch.espAlternate Start Revamped.espRenGuardOverhaul.espBashed Patch, 0.esp

It's probably because some files from your 'data/Video' folder are corrupted,
I suggest installing game to another folder (while keeping your old game folder) and then copying Video folder from new installation to the old one.

Why would they be corrupted? As far as I know, I haven't installed any mods that alter the opening sequences.

if you use darkui darnified and you asked to use the darkUI version. Then you can look in that for the logo loops. I dont remeber which ones it has but the oblivion symbol is one as well as the transition screens.

I doubt you'll find this helpful, but I had the exact same problem recently when I went in and edited Bethesda's BSA files. The problem came down to having the incorrect "flags" set on the BSA file (i.e. the BSA containing Oblivion's logo video was not flagged to contain videos). Running BSA Commander on the offending BSA file and re-setting the flags corrected the problem.