13F-HR 1 a2198683z13f-hr.txt 13F-HR UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 13F FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2010 ----------------------- Check Here if Amendment / /; Amendment Number: --------- This Amendment (Check only one.): / / is a restatement. / / adds new holdings entries. Institutional Investment Manager Filing this Report: Name: MLP Co-Investment Opportunity Fund, L.P. ---------------------------------------- Address: 6640 W. 143rd Street, Suite 200 ---------------------------------------- Overland Park, Kansas 66223 ---------------------------------------- Form 13F File Number: 28-13797 --------------------- The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: David G. Dehaemers, Jr. ------------------------------- Title: President ------------------------------- Phone: (913) 928-6005 ------------------------------- Signature, Place, and Date of Signing: /S/David G. Dehaemers, Jr. Overland Park, Kansas May 7 , 2010 ------------------------------- --------------------- ------------ [Signature] [City, State] [Date] Report Type (Check only one.): /X/ 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.) / / 13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).) / / 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).) List of Other Managers Reporting for this Manager: None. FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 1 -------------------- Form 13F Information Table Entry Total: 14 -------------------- Form 13F Information Table Value Total: $206,967 -------------------- (thousands) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report. No. Form 13F File Number Name 1 28-13796 MLP Opportunity Fund GP, L.L.C. ------ ----------------- --------------------------------- FORM 13F INFORMATION TABLE

COLUMN 1COLUMN COLUMN 2COLUMN COLUMN 3COLUMN COLUMN 4 COLUMN 51 ~~COLUMN~~2 63 ~~COLUMN~~4 75 ~~COLUMN~~6 7 8 -------------------------------- ---------------- --------- -------- ---------------------- ---------- -------- -------------------~~------~~ VALUE SHARES/ SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (~~x1000~~x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE -------------------------------- ---------------- --------- -------- --------- ----- ------ ---------- -------- ------- ------ -----~~---------~~ EL PASO PIPELINE PARTNERS L P COM UNIT LPI 283702108 2021,~~296~~804 781,800 SH DEFINED 1 781,800 0 0 ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 1415,~~354~~838 469,400 SH DEFINED 1 469,400 0 0 ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 29273R109 5,~~459~~689 121,400 SH DEFINED 1 121,400 0 0 ENTERPRISE GP HLDGS L P UNIT LP INT 293716106 89,~~772~~668 225,100 SH DEFINED 1 225,100 0 0 ENTERPRISE PRODS PARTNERS L P COM 293792107 1117,~~380~~390 ~~362~~502,~~300~~900 SH DEFINED 1 ~~362~~502,~~300~~900 0 0 INERGY HLDGS L P COM 45661Q107 56,~~246~~509 89,300 SH DEFINED 1 89,300 0 0 INERGY L P UNIT LTD PTNR 456615103 1522,~~606~~948 ~~437~~607,~~380~~080 SH DEFINED 1 ~~437~~607,~~380~~080 0 0 K SEA TRANSN PARTNERS LP COM 48268Y101 45,~~253~~098 ~~367~~568,~~300~~400 SH DEFINED 1 ~~367~~568,~~300~~400 0 0 KINDER MORGAN ENERGY PARTNERS LP UT LTD PARTNER 494550106 89,~~842~~486 145,000 SH DEFINED 1 145,000 0 0 KINDER MORGAN MANAGEMENT LLC SHS 49455U100 2835,~~261~~396 ~~517~~603,~~223~~816 SH DEFINED 1 ~~517~~603,~~223~~816 0 0 MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 7,~~227~~927 166,782 SH DEFINED 1 166,782 0 0 ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 1921,~~600~~420 ~~314~~349,600 SH DEFINED 1 ~~314~~349,600 0 0 PLAINS ALL AMERN PIPELINE LP UNIT LTD PARTN 726503105 2325,~~423~~400 ~~443~~446,~~200~~400 SH DEFINED 1 ~~443~~446,~~200~~400 0 0 TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 32,~~491~~394 ~~143~~90,~~600~~300 SH DEFINED 1 ~~143~~90,~~600~~300 0 0

Filing Compare · Tallgrass MLP Fund I, L.P.