B737 first officer reported encountering wake turbulence departing dfw.

Attributes
ACN	1302704
Time
Date	201510
Local Time Of Day	1801-2400
Place
Locale Reference	D10.TRACON
State Reference	TX
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Route In Use	SID BLECO SEVEN
Flight Plan	IFR
Aircraft 2
Make Model Name	Commercial Fixed Wing
Flight Phase	Initial Climb
Flight Plan	IFR
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Experience	Flight Crew Last 90 Days 125 Flight Crew Total 11400 Flight Crew Type 125
Events
Anomaly	Inflight Event / Encounter Wake Vortex Encounter

Narrative:

We departed runway 18L from dfw. Numerous aircraft before and probably after us. Great weather; light south winds. We were climbing via the BLECO7 RNAV departure as were most of the departures off 18L. I was first officer; pilot monitoring. Somewhere around 2000 ft to 3000 ft MSL we encountered what we believe was a previous aircraft's wake. The airplane rolled right; no more than 25 degrees; while the captain was inputting strong left aileron. After a few seconds the roll switched direction and again we rolled no more than 25 degrees left though captain was putting in significant right aileron. The whole event lasted no more than 10 seconds; rest of flight uneventful. Prior to our encounter; we heard a previous aircraft on the freq report a wake encounter as well; I don't know exactly where they were. My guess at contributing factors light winds; and the exactness of RNAV departures.

Original NASA ASRS Text

Title: B737 First Officer reported encountering wake turbulence departing DFW.

Narrative: We departed runway 18L from DFW. Numerous aircraft before and probably after us. Great weather; light south winds. We were climbing via the BLECO7 RNAV departure as were most of the departures off 18L. I was First Officer; Pilot Monitoring. Somewhere around 2000 ft to 3000 ft MSL we encountered what we believe was a previous aircraft's wake. The airplane rolled right; no more than 25 degrees; while the Captain was inputting strong left aileron. After a few seconds the roll switched direction and again we rolled no more than 25 degrees left though Captain was putting in significant right aileron. The whole event lasted no more than 10 seconds; rest of flight uneventful. Prior to our encounter; we heard a previous aircraft on the freq report a wake encounter as well; I don't know exactly where they were. My guess at contributing factors light winds; and the exactness of RNAV departures.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.