ECOPETROL S A

Ticker: EC CUSIP: 279158109 Class: ADR

Texas Yale Capital Corp.'s Holding History (CIK: 0001332342)

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

Q2 2015
Shares 25,500 Value ($000) $338 Avg Close — Range —
Q1 2015
Shares 26,500 Value ($000) $403 Avg Close — Range —
Q4 2014
Shares 21,000 Value ($000) $360 Avg Close — Range —