Insider Trading activities of Duncan Energy Partners L.p. insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Duncan Energy Partners L.p. since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Duncan Energy Partners L.p. since year 2005. Table 2 shows the detailed insider transactions of Duncan Energy Partners L.p. since 2005. The reporting company's ticker symbol is DEP. The reporting company's CIK number is 1379378.
The total value of stock buying since 2005 is $16,548,194.
The total value of stock sales since 2005 is $1,565,282.
The total value of stock option exercises since 2005 is $38,493,000.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Duncan Energy Partners L.p. (DEP).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2010-12 4,963 $156,561 0 $0 0 $0
2010-11 4,520 $147,115 0 $0 0 $0
2010-10 37,500 $1,171,387 0 $0 0 $0
2010-05 9,402 $223,191 0 $0 0 $0
2010-02 51,279 $1,280,707 0 $0 0 $0
2009-11 7,765 $165,868 0 $0 0 $0
2009-10 2,000 $41,712 0 $0 0 $0
2009-08 2,292 $41,044 0 $0 0 $0
2009-06 199,453 $3,143,213 99,453 $1,549,477 0 $0
2009-05 2,499 $47,182 0 $0 0 $0
2009-02 6 $102 0 $0 0 $0
2008-12 100,508 $1,239,601 0 $0 0 $0
2008-11 6 $88 0 $0 0 $0
2008-09 71,500 $1,229,872 0 $0 0 $0
2008-08 47,770 $867,180 0 $0 0 $0
2008-07 95,700 $1,744,184 0 $0 0 $0
2008-06 6,000 $111,479 0 $0 0 $0
2008-05 68,069 $1,329,258 0 $0 0 $0
2008-04 10,000 $192,930 0 $0 0 $0
2008-02 230 $5,062 0 $0 0 $0
2007-11 171 $4,076 0 $0 0 $0
2007-09 15,300 $367,580 0 $0 0 $0
2007-08 104,100 $2,381,652 700 $15,805 0 $0
2007-07 20,000 $521,200 0 $0 0 $0
2007-05 5,000 $135,950 0 $0 0 $0
2007-02 0 $0 0 $0 1,950,000 $38,493,000

Table 2. Detailed insider stock purchases, sales, and option exercises of Duncan Energy Partners L.p. insiders (DEP)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2010-12-15 Casey Larry (Director) Buy 1,563 31.65 49,468
2010-12-02 Bruckmann William A Iii (Director) Buy 3,400 31.50 107,093
2010-11-11 Havens Joe (Director) Buy 2,035 32.40 65,934
2010-11-09 Havens Joe (Director) Buy 600 32.79 19,674
2010-11-05 Havens Joe (Director) Buy 1,885 32.63 61,507
2010-10-29 Havens Joe (Director) Buy 37,500 31.24 1,171,387
2010-05-26 Havens Joe (Director) Buy 4,000 24.65 98,600
2010-05-20 Havens Joe (Director) Buy 5,000 22.89 114,460
2010-05-10 Havens Joe (Director) Buy 402 25.20 10,131
2010-02-18 Duncan Dan L (Chairman) Buy 48,891 25.02 1,223,252
2010-02-12 Knesek Michael J (SVP, PAO, & Controller) Buy 1,000 23.74 23,740
2010-02-08 Havens Joe (Director) Buy 388 23.68 9,186
2010-02-03 Bachmann Richard H (President & CEO) Buy 1,000 24.53 24,529
2009-11-06 Havens Joe (Director) Buy 265 21.39 5,668
2009-11-05 Havens Joe (Director) Buy 7,500 21.36 160,200
2009-10-30 Bachmann Richard H (President & CEO) Buy 2,000 20.86 41,712
2009-08-10 Havens Joe (Director) Buy 292 18.37 5,364
2009-08-07 Bachmann Richard H (President & CEO) Buy 2,000 17.84 35,680
2009-06-25 Duncan Dan L (Chairman) Buy 38,000 15.98 607,316
2009-06-24 Duncan Dan L (Chairman) Buy 62,000 15.91 986,420
2009-06-23 Havens Joe (Director) Sale 99,453 15.58 1,549,477
2009-06-23 Duncan Dan L (Chairman) Buy 99,453 15.58 1,549,477
2009-05-11 Havens Joe (Director) Buy 2,494 18.88 47,088
2009-02-10 Havens Joe (Director) Buy 6 17.06 102
2008-12-29 Casey Larry (Director) Buy 10,900 13.75 149,875
2008-12-17 Teague Aj (Ex. VP & Chief Commercial Off.) Buy 2,000 13.88 27,758
2008-12-17 Ordemann William (Executive Vice President & COO) Buy 1,810 13.91 25,178
2008-12-16 Knesek Michael J (SrVP, Prncpl Acntng Offcr) Buy 740 13.50 9,990
2008-12-11 Bruckmann William A Iii (Director) Buy 2,000 13.39 26,782
2008-12-08 Enterprise Products Operating Llc (10% Owner) Buy 41,529 12.04 500,009
2008-12-08 Duncan Dan L (Chairman) Buy 41,529 12.04 500,009
2008-11-13 Havens Joe (Director) Buy 6 14.83 88
2008-09-18 Duncan Dan L (Chairman) Buy 16,000 15.48 247,680
2008-09-08 Duncan Dan L (Chairman) Buy 27,500 17.96 493,872
2008-09-05 Duncan Dan L (Chairman) Buy 28,000 17.44 488,320
2008-08-28 Ordemann William (Executive Vice President & COO) Buy 2,000 18.10 36,200
2008-08-27 Teague Aj (Ex. VP & Chief Commercial Off.) Buy 4,000 18.01 72,040
2008-08-08 Havens Joe (Director) Buy 2,465 18.24 44,961
2008-08-04 Duncan Dan L (Chairman) Buy 24,300 18.02 437,813
2008-08-01 Duncan Dan L (Chairman) Buy 15,000 18.40 276,075
2008-07-31 Duncan Dan L (Chairman) Buy 25,700 18.49 475,295
2008-07-30 Duncan Dan L (Chairman) Buy 28,400 18.15 515,488
2008-07-29 Duncan Dan L (Chairman) Buy 25,000 18.12 452,975
2008-07-28 Duncan Dan L (Chairman) Buy 16,600 18.10 300,426
2008-06-27 Havens Joe (Director) Buy 6,000 18.58 111,479
2008-05-08 Havens Joe (Director) Buy 2,065 19.65 40,574
2008-05-06 Duncan Dan L (Chairman) Buy 16,000 19.52 312,336
2008-05-05 Duncan Dan L (Chairman) Buy 20,000 19.56 391,220
2008-05-02 Duncan Dan L (Chairman) Buy 20,000 19.49 389,820
2008-05-01 Duncan Dan L (Chairman) Buy 10,000 19.52 195,230
2008-04-30 Duncan Dan L (Chairman) Buy 10,000 19.29 192,930
2008-02-07 Havens Joe (Director) Buy 230 22.01 5,062
2007-11-07 Bachmann Richard H (President & CEO) Buy 171 23.84 4,076
2007-09-25 Havens Joe (Director) Buy 3,200 23.49 75,168
2007-09-24 Havens Joe (Director) Buy 4,100 23.85 97,785
2007-09-21 Havens Joe (Director) Buy 1,500 24.11 36,165
2007-09-18 Havens Joe (Director) Buy 3,300 24.30 80,190
2007-09-17 Havens Joe (Director) Buy 3,200 24.46 78,272
2007-08-30 Havens Joe (Director) Buy 1,000 23.96 23,960
2007-08-29 Havens Joe (Director) Buy 1,000 24.07 24,070
2007-08-28 Havens Joe (Director) Buy 500 24.26 12,130
2007-08-27 Havens Joe (Director) Buy 1,000 24.39 24,390
2007-08-23 Bruckmann William A Iii (Director) Buy 2,500 24.60 61,497
2007-08-23 Duncan Dan L (Chairman) Buy 20,100 24.41 490,600
2007-08-22 Duncan Dan L (Chairman) Buy 6,500 23.86 155,070
2007-08-21 Bruckmann William A Iii (Director) Sale 700 22.58 15,805
2007-08-21 Duncan Dan L (Chairman) Buy 6,500 22.88 148,720
2007-08-20 Havens Joe (Director) Buy 5,000 22.96 114,800
2007-08-20 Duncan Dan L (Chairman) Buy 6,500 23.15 150,455
2007-08-17 Duncan Dan L (Chairman) Buy 6,500 22.76 147,920
2007-08-16 Duncan Dan L (Chairman) Buy 7,000 20.76 145,320
2007-08-15 Duncan Dan L (Chairman) Buy 40,000 22.07 882,720
2007-07-30 Havens Joe (Director) Buy 20,000 26.06 521,200
2007-05-03 Havens Joe (Director) Buy 5,000 27.19 135,950
2007-02-05 Enterprise Products Partners L P (10% Owner) Option Ex 1,950,000 19.74 38,493,000

Insider trading activities including stock purchases, stock sales, and option exercises of DEP listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Duncan Energy Partners L.p. (symbol DEP, CIK number 1379378) see the Securities and Exchange Commission (SEC) website.