ECOPETROL S A

Ticker: EC CUSIP: 279158109 Class: ADR

AZZAD ASSET MANAGEMENT INC /ADV's Holding History (CIK: 0001121914)

Note: Option positions (PUT/CALL) are excluded.

Q3 2012
Shares 14,942 Value ($000) $881 Avg Close — Range —
Q2 2012
Shares 19,046 Value ($000) $1,063 Avg Close — Range —
Q1 2012
Shares 17,789 Value ($000) $1,087 Avg Close — Range —
Q4 2011
Shares 17,911 Value ($000) $797 Avg Close — Range —
Q3 2011
Shares 22,649 Value ($000) $913 Avg Close — Range —
Q2 2011
Shares 22,204 Value ($000) $977 Avg Close — Range —
Q1 2011
Shares 22,189 Value ($000) $925 Avg Close — Range —
Q4 2010
Shares 22,986 Value ($000) $1,003 Avg Close — Range —